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Finding the Fourth Proportional to 653,088.62, 980,006.70 and 253,677.72

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Solution

The fourth proportional to 653,088.62, 980,006.70 and 253,677.72 is: 380,661.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,088.62 : 980,006.70 = 253,677.72 : x
  2. Step 2: Convert to fraction form
    653,088.62/980,006.70 = 253,677.72/x
  3. Step 3: Cross multiply
    653,088.62x = 980,006.70 × 253,677.72
  4. Step 4: Simplify right side
    653,088.62x = 248,605,865,240.72
  5. Step 5: Solve for x
    x = 248,605,865,240.72/653,088.62
  6. Step 6: Final answer
    x = 380,661.76

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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.