Home / 1,275,935.79-1,913,840.04-477,158.61

Finding the Fourth Proportional to 1,275,935.79, 1,913,840.04 and 477,158.61

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Solution

The fourth proportional to 1,275,935.79, 1,913,840.04 and 477,158.61 is: 715,714.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,935.79 : 1,913,840.04 = 477,158.61 : x
  2. Step 2: Convert to fraction form
    1,275,935.79/1,913,840.04 = 477,158.61/x
  3. Step 3: Cross multiply
    1,275,935.79x = 1,913,840.04 × 477,158.61
  4. Step 4: Simplify right side
    1,275,935.79x = 913,205,253,248.74
  5. Step 5: Solve for x
    x = 913,205,253,248.74/1,275,935.79
  6. Step 6: Final answer
    x = 715,714.11

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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.