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Finding the Fourth Proportional to 524,491.20, 784,987.20 and 461,505.60

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Solution

The fourth proportional to 524,491.20, 784,987.20 and 461,505.60 is: 690,718.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,491.20 : 784,987.20 = 461,505.60 : x
  2. Step 2: Convert to fraction form
    524,491.20/784,987.20 = 461,505.60/x
  3. Step 3: Cross multiply
    524,491.20x = 784,987.20 × 461,505.60
  4. Step 4: Simplify right side
    524,491.20x = 362,275,988,728.32
  5. Step 5: Solve for x
    x = 362,275,988,728.32/524,491.20
  6. Step 6: Final answer
    x = 690,718.91

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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.