Home / 676,475.52-931,411.80-574,289.28

Finding the Fourth Proportional to 676,475.52, 931,411.80 and 574,289.28

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Solution

The fourth proportional to 676,475.52, 931,411.80 and 574,289.28 is: 790,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,475.52 : 931,411.80 = 574,289.28 : x
  2. Step 2: Convert to fraction form
    676,475.52/931,411.80 = 574,289.28/x
  3. Step 3: Cross multiply
    676,475.52x = 931,411.80 × 574,289.28
  4. Step 4: Simplify right side
    676,475.52x = 534,899,812,005.50
  5. Step 5: Solve for x
    x = 534,899,812,005.50/676,475.52
  6. Step 6: Final answer
    x = 790,715.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.