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Finding the Fourth Proportional to 658,006.08, 987,009.05 and 358,738.30

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Solution

The fourth proportional to 658,006.08, 987,009.05 and 358,738.30 is: 538,107.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,006.08 : 987,009.05 = 358,738.30 : x
  2. Step 2: Convert to fraction form
    658,006.08/987,009.05 = 358,738.30/x
  3. Step 3: Cross multiply
    658,006.08x = 987,009.05 × 358,738.30
  4. Step 4: Simplify right side
    658,006.08x = 354,077,946,887.92
  5. Step 5: Solve for x
    x = 354,077,946,887.92/658,006.08
  6. Step 6: Final answer
    x = 538,107.41

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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.