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Finding the Fourth Proportional to 636,200.92, 877,935 and 349,718.95

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Solution

The fourth proportional to 636,200.92, 877,935 and 349,718.95 is: 482,599.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,200.92 : 877,935 = 349,718.95 : x
  2. Step 2: Convert to fraction form
    636,200.92/877,935 = 349,718.95/x
  3. Step 3: Cross multiply
    636,200.92x = 877,935 × 349,718.95
  4. Step 4: Simplify right side
    636,200.92x = 307,030,506,368.25
  5. Step 5: Solve for x
    x = 307,030,506,368.25/636,200.92
  6. Step 6: Final answer
    x = 482,599.91

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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.