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Finding the Fourth Proportional to 645,068.52, 967,806.88 and 290,113.56

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Solution

The fourth proportional to 645,068.52, 967,806.88 and 290,113.56 is: 435,262.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,068.52 : 967,806.88 = 290,113.56 : x
  2. Step 2: Convert to fraction form
    645,068.52/967,806.88 = 290,113.56/x
  3. Step 3: Cross multiply
    645,068.52x = 967,806.88 × 290,113.56
  4. Step 4: Simplify right side
    645,068.52x = 280,773,899,349.29
  5. Step 5: Solve for x
    x = 280,773,899,349.29/645,068.52
  6. Step 6: Final answer
    x = 435,262.13

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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.