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Finding the Fourth Proportional to 509,510.40, 764,265.60 and 501,637.20

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Solution

The fourth proportional to 509,510.40, 764,265.60 and 501,637.20 is: 752,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,510.40 : 764,265.60 = 501,637.20 : x
  2. Step 2: Convert to fraction form
    509,510.40/764,265.60 = 501,637.20/x
  3. Step 3: Cross multiply
    509,510.40x = 764,265.60 × 501,637.20
  4. Step 4: Simplify right side
    509,510.40x = 383,384,055,640.32
  5. Step 5: Solve for x
    x = 383,384,055,640.32/509,510.40
  6. Step 6: Final answer
    x = 752,455.80

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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.