Home / 642,836.26-964,285.15-530,307.82

Finding the Fourth Proportional to 642,836.26, 964,285.15 and 530,307.82

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Solution

The fourth proportional to 642,836.26, 964,285.15 and 530,307.82 is: 795,487.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,836.26 : 964,285.15 = 530,307.82 : x
  2. Step 2: Convert to fraction form
    642,836.26/964,285.15 = 530,307.82/x
  3. Step 3: Cross multiply
    642,836.26x = 964,285.15 × 530,307.82
  4. Step 4: Simplify right side
    642,836.26x = 511,367,955,754.87
  5. Step 5: Solve for x
    x = 511,367,955,754.87/642,836.26
  6. Step 6: Final answer
    x = 795,487.11

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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.