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Finding the Fourth Proportional to 999,854.12, 1,379,798.58 and 547,145

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Solution

The fourth proportional to 999,854.12, 1,379,798.58 and 547,145 is: 755,060.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,854.12 : 1,379,798.58 = 547,145 : x
  2. Step 2: Convert to fraction form
    999,854.12/1,379,798.58 = 547,145/x
  3. Step 3: Cross multiply
    999,854.12x = 1,379,798.58 × 547,145
  4. Step 4: Simplify right side
    999,854.12x = 754,949,894,054.10
  5. Step 5: Solve for x
    x = 754,949,894,054.10/999,854.12
  6. Step 6: Final answer
    x = 755,060.04

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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.