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Finding the Fourth Proportional to 389,951.70, 584,927.55 and 366,332.10

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Solution

The fourth proportional to 389,951.70, 584,927.55 and 366,332.10 is: 549,498.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,951.70 : 584,927.55 = 366,332.10 : x
  2. Step 2: Convert to fraction form
    389,951.70/584,927.55 = 366,332.10/x
  3. Step 3: Cross multiply
    389,951.70x = 584,927.55 × 366,332.10
  4. Step 4: Simplify right side
    389,951.70x = 214,277,737,739.36
  5. Step 5: Solve for x
    x = 214,277,737,739.36/389,951.70
  6. Step 6: Final answer
    x = 549,498.15

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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.