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Finding the Fourth Proportional to 636,368.52, 878,170.07 and 360,751.93

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Solution

The fourth proportional to 636,368.52, 878,170.07 and 360,751.93 is: 497,827.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,368.52 : 878,170.07 = 360,751.93 : x
  2. Step 2: Convert to fraction form
    636,368.52/878,170.07 = 360,751.93/x
  3. Step 3: Cross multiply
    636,368.52x = 878,170.07 × 360,751.93
  4. Step 4: Simplify right side
    636,368.52x = 316,801,547,620.74
  5. Step 5: Solve for x
    x = 316,801,547,620.74/636,368.52
  6. Step 6: Final answer
    x = 497,827.18

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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.