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Finding the Fourth Proportional to 655,950.70, 983,926.05 and 432,001.90

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Solution

The fourth proportional to 655,950.70, 983,926.05 and 432,001.90 is: 648,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,950.70 : 983,926.05 = 432,001.90 : x
  2. Step 2: Convert to fraction form
    655,950.70/983,926.05 = 432,001.90/x
  3. Step 3: Cross multiply
    655,950.70x = 983,926.05 × 432,001.90
  4. Step 4: Simplify right side
    655,950.70x = 425,057,923,059.50
  5. Step 5: Solve for x
    x = 425,057,923,059.50/655,950.70
  6. Step 6: Final answer
    x = 648,002.85

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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.