Home / 513,830.16-709,086.24-287,475.84

Finding the Fourth Proportional to 513,830.16, 709,086.24 and 287,475.84

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Solution

The fourth proportional to 513,830.16, 709,086.24 and 287,475.84 is: 396,717.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,830.16 : 709,086.24 = 287,475.84 : x
  2. Step 2: Convert to fraction form
    513,830.16/709,086.24 = 287,475.84/x
  3. Step 3: Cross multiply
    513,830.16x = 709,086.24 × 287,475.84
  4. Step 4: Simplify right side
    513,830.16x = 203,845,162,476.44
  5. Step 5: Solve for x
    x = 203,845,162,476.44/513,830.16
  6. Step 6: Final answer
    x = 396,717.01

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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.