Home / 997,007.40-1,495,511.10-678,142.80

Finding the Fourth Proportional to 997,007.40, 1,495,511.10 and 678,142.80

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Solution

The fourth proportional to 997,007.40, 1,495,511.10 and 678,142.80 is: 1,017,214.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,007.40 : 1,495,511.10 = 678,142.80 : x
  2. Step 2: Convert to fraction form
    997,007.40/1,495,511.10 = 678,142.80/x
  3. Step 3: Cross multiply
    997,007.40x = 1,495,511.10 × 678,142.80
  4. Step 4: Simplify right side
    997,007.40x = 1,014,170,084,785.08
  5. Step 5: Solve for x
    x = 1,014,170,084,785.08/997,007.40
  6. Step 6: Final answer
    x = 1,017,214.20

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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.