Home / 478,826.20-718,239.30-146,402.20

Finding the Fourth Proportional to 478,826.20, 718,239.30 and 146,402.20

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Solution

The fourth proportional to 478,826.20, 718,239.30 and 146,402.20 is: 219,603.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,826.20 : 718,239.30 = 146,402.20 : x
  2. Step 2: Convert to fraction form
    478,826.20/718,239.30 = 146,402.20/x
  3. Step 3: Cross multiply
    478,826.20x = 718,239.30 × 146,402.20
  4. Step 4: Simplify right side
    478,826.20x = 105,151,813,646.46
  5. Step 5: Solve for x
    x = 105,151,813,646.46/478,826.20
  6. Step 6: Final answer
    x = 219,603.30

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Similar ratio
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1.5x scale

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.