Home / 542,836.10-749,099.34-313,385.65

Finding the Fourth Proportional to 542,836.10, 749,099.34 and 313,385.65

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Solution

The fourth proportional to 542,836.10, 749,099.34 and 313,385.65 is: 432,463.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,836.10 : 749,099.34 = 313,385.65 : x
  2. Step 2: Convert to fraction form
    542,836.10/749,099.34 = 313,385.65/x
  3. Step 3: Cross multiply
    542,836.10x = 749,099.34 × 313,385.65
  4. Step 4: Simplify right side
    542,836.10x = 234,756,983,580.47
  5. Step 5: Solve for x
    x = 234,756,983,580.47/542,836.10
  6. Step 6: Final answer
    x = 432,463.84

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Double scale
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1.5x scale

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.