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Finding the Fourth Proportional to 647,848.70, 972,210.45 and 363,538.70

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Solution

The fourth proportional to 647,848.70, 972,210.45 and 363,538.70 is: 545,553.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,848.70 : 972,210.45 = 363,538.70 : x
  2. Step 2: Convert to fraction form
    647,848.70/972,210.45 = 363,538.70/x
  3. Step 3: Cross multiply
    647,848.70x = 972,210.45 × 363,538.70
  4. Step 4: Simplify right side
    647,848.70x = 353,436,123,119.42
  5. Step 5: Solve for x
    x = 353,436,123,119.42/647,848.70
  6. Step 6: Final answer
    x = 545,553.50

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1.5x scale

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.