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Finding the Fourth Proportional to 647,956.98, 972,263.43 and 437,152.05

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Solution

The fourth proportional to 647,956.98, 972,263.43 and 437,152.05 is: 655,949.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,956.98 : 972,263.43 = 437,152.05 : x
  2. Step 2: Convert to fraction form
    647,956.98/972,263.43 = 437,152.05/x
  3. Step 3: Cross multiply
    647,956.98x = 972,263.43 × 437,152.05
  4. Step 4: Simplify right side
    647,956.98x = 425,026,951,564.53
  5. Step 5: Solve for x
    x = 425,026,951,564.53/647,956.98
  6. Step 6: Final answer
    x = 655,949.34

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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.