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Finding the Fourth Proportional to 653,999.70, 980,481.15 and 358,511.70

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Solution

The fourth proportional to 653,999.70, 980,481.15 and 358,511.70 is: 537,483.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,999.70 : 980,481.15 = 358,511.70 : x
  2. Step 2: Convert to fraction form
    653,999.70/980,481.15 = 358,511.70/x
  3. Step 3: Cross multiply
    653,999.70x = 980,481.15 × 358,511.70
  4. Step 4: Simplify right side
    653,999.70x = 351,513,963,904.46
  5. Step 5: Solve for x
    x = 351,513,963,904.46/653,999.70
  6. Step 6: Final answer
    x = 537,483.37

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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.