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Finding the Fourth Proportional to 652,551, 900,520.65 and 397,955.04

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Solution

The fourth proportional to 652,551, 900,520.65 and 397,955.04 is: 549,178.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,551 : 900,520.65 = 397,955.04 : x
  2. Step 2: Convert to fraction form
    652,551/900,520.65 = 397,955.04/x
  3. Step 3: Cross multiply
    652,551x = 900,520.65 × 397,955.04
  4. Step 4: Simplify right side
    652,551x = 358,366,731,291.58
  5. Step 5: Solve for x
    x = 358,366,731,291.58/652,551
  6. Step 6: Final answer
    x = 549,178.12

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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.