Home / 659,011.40-988,517.12-570,000.52

Finding the Fourth Proportional to 659,011.40, 988,517.12 and 570,000.52

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Solution

The fourth proportional to 659,011.40, 988,517.12 and 570,000.52 is: 855,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,011.40 : 988,517.12 = 570,000.52 : x
  2. Step 2: Convert to fraction form
    659,011.40/988,517.12 = 570,000.52/x
  3. Step 3: Cross multiply
    659,011.40x = 988,517.12 × 570,000.52
  4. Step 4: Simplify right side
    659,011.40x = 563,455,272,428.90
  5. Step 5: Solve for x
    x = 563,455,272,428.90/659,011.40
  6. Step 6: Final answer
    x = 855,000.80

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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.