Home / 692,116.90-1,038,175.35-412,180.90

Finding the Fourth Proportional to 692,116.90, 1,038,175.35 and 412,180.90

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Solution

The fourth proportional to 692,116.90, 1,038,175.35 and 412,180.90 is: 618,271.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,116.90 : 1,038,175.35 = 412,180.90 : x
  2. Step 2: Convert to fraction form
    692,116.90/1,038,175.35 = 412,180.90/x
  3. Step 3: Cross multiply
    692,116.90x = 1,038,175.35 × 412,180.90
  4. Step 4: Simplify right side
    692,116.90x = 427,916,050,120.82
  5. Step 5: Solve for x
    x = 427,916,050,120.82/692,116.90
  6. Step 6: Final answer
    x = 618,271.35

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.