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Finding the Fourth Proportional to 649,209.08, 895,954.88 and 358,814.40

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Solution

The fourth proportional to 649,209.08, 895,954.88 and 358,814.40 is: 495,189.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,209.08 : 895,954.88 = 358,814.40 : x
  2. Step 2: Convert to fraction form
    649,209.08/895,954.88 = 358,814.40/x
  3. Step 3: Cross multiply
    649,209.08x = 895,954.88 × 358,814.40
  4. Step 4: Simplify right side
    649,209.08x = 321,481,513,591.31
  5. Step 5: Solve for x
    x = 321,481,513,591.31/649,209.08
  6. Step 6: Final answer
    x = 495,189.49

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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.