Home / 722,818.90-1,084,228.35-512,866.90

Finding the Fourth Proportional to 722,818.90, 1,084,228.35 and 512,866.90

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Solution

The fourth proportional to 722,818.90, 1,084,228.35 and 512,866.90 is: 769,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,818.90 : 1,084,228.35 = 512,866.90 : x
  2. Step 2: Convert to fraction form
    722,818.90/1,084,228.35 = 512,866.90/x
  3. Step 3: Cross multiply
    722,818.90x = 1,084,228.35 × 512,866.90
  4. Step 4: Simplify right side
    722,818.90x = 556,064,832,756.62
  5. Step 5: Solve for x
    x = 556,064,832,756.62/722,818.90
  6. Step 6: Final answer
    x = 769,300.35

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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.