Home / 690,931.64-1,036,200.63-437,830.13

Finding the Fourth Proportional to 690,931.64, 1,036,200.63 and 437,830.13

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Solution

The fourth proportional to 690,931.64, 1,036,200.63 and 437,830.13 is: 656,620.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,931.64 : 1,036,200.63 = 437,830.13 : x
  2. Step 2: Convert to fraction form
    690,931.64/1,036,200.63 = 437,830.13/x
  3. Step 3: Cross multiply
    690,931.64x = 1,036,200.63 × 437,830.13
  4. Step 4: Simplify right side
    690,931.64x = 453,679,856,538.98
  5. Step 5: Solve for x
    x = 453,679,856,538.98/690,931.64
  6. Step 6: Final answer
    x = 656,620.47

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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.