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Finding the Fourth Proportional to 391,702.95, 537,029.76 and 384,617.07

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Solution

The fourth proportional to 391,702.95, 537,029.76 and 384,617.07 is: 527,314.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,702.95 : 537,029.76 = 384,617.07 : x
  2. Step 2: Convert to fraction form
    391,702.95/537,029.76 = 384,617.07/x
  3. Step 3: Cross multiply
    391,702.95x = 537,029.76 × 384,617.07
  4. Step 4: Simplify right side
    391,702.95x = 206,550,812,794.00
  5. Step 5: Solve for x
    x = 206,550,812,794.00/391,702.95
  6. Step 6: Final answer
    x = 527,314.93

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.