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Finding the Fourth Proportional to 649,210.61, 895,957.01 and 358,815.94

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Solution

The fourth proportional to 649,210.61, 895,957.01 and 358,815.94 is: 495,191.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,210.61 : 895,957.01 = 358,815.94 : x
  2. Step 2: Convert to fraction form
    649,210.61/895,957.01 = 358,815.94/x
  3. Step 3: Cross multiply
    649,210.61x = 895,957.01 × 358,815.94
  4. Step 4: Simplify right side
    649,210.61x = 321,483,656,068.61
  5. Step 5: Solve for x
    x = 321,483,656,068.61/649,210.61
  6. Step 6: Final answer
    x = 495,191.62

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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.