Home / 377,521.28-520,979.06-207,755.40

Finding the Fourth Proportional to 377,521.28, 520,979.06 and 207,755.40

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Solution

The fourth proportional to 377,521.28, 520,979.06 and 207,755.40 is: 286,702.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,521.28 : 520,979.06 = 207,755.40 : x
  2. Step 2: Convert to fraction form
    377,521.28/520,979.06 = 207,755.40/x
  3. Step 3: Cross multiply
    377,521.28x = 520,979.06 × 207,755.40
  4. Step 4: Simplify right side
    377,521.28x = 108,236,211,963.15
  5. Step 5: Solve for x
    x = 108,236,211,963.15/377,521.28
  6. Step 6: Final answer
    x = 286,702.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.