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Finding the Fourth Proportional to 472,759.40, 652,553.52 and 291,528.20

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Solution

The fourth proportional to 472,759.40, 652,553.52 and 291,528.20 is: 402,398.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,759.40 : 652,553.52 = 291,528.20 : x
  2. Step 2: Convert to fraction form
    472,759.40/652,553.52 = 291,528.20/x
  3. Step 3: Cross multiply
    472,759.40x = 652,553.52 × 291,528.20
  4. Step 4: Simplify right side
    472,759.40x = 190,237,753,089.26
  5. Step 5: Solve for x
    x = 190,237,753,089.26/472,759.40
  6. Step 6: Final answer
    x = 402,398.67

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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.