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Finding the Fourth Proportional to 656,952.40, 985,428.60 and 499,488.40

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Solution

The fourth proportional to 656,952.40, 985,428.60 and 499,488.40 is: 749,232.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,952.40 : 985,428.60 = 499,488.40 : x
  2. Step 2: Convert to fraction form
    656,952.40/985,428.60 = 499,488.40/x
  3. Step 3: Cross multiply
    656,952.40x = 985,428.60 × 499,488.40
  4. Step 4: Simplify right side
    656,952.40x = 492,210,154,728.24
  5. Step 5: Solve for x
    x = 492,210,154,728.24/656,952.40
  6. Step 6: Final answer
    x = 749,232.60

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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.