Home / 642,834.76-964,282.89-530,306.32

Finding the Fourth Proportional to 642,834.76, 964,282.89 and 530,306.32

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Solution

The fourth proportional to 642,834.76, 964,282.89 and 530,306.32 is: 795,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,834.76 : 964,282.89 = 530,306.32 : x
  2. Step 2: Convert to fraction form
    642,834.76/964,282.89 = 530,306.32/x
  3. Step 3: Cross multiply
    642,834.76x = 964,282.89 × 530,306.32
  4. Step 4: Simplify right side
    642,834.76x = 511,365,310,834.87
  5. Step 5: Solve for x
    x = 511,365,310,834.87/642,834.76
  6. Step 6: Final answer
    x = 795,484.85

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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.