Home / 558,784.30-838,176.45-402,486.70

Finding the Fourth Proportional to 558,784.30, 838,176.45 and 402,486.70

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Solution

The fourth proportional to 558,784.30, 838,176.45 and 402,486.70 is: 603,730.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,784.30 : 838,176.45 = 402,486.70 : x
  2. Step 2: Convert to fraction form
    558,784.30/838,176.45 = 402,486.70/x
  3. Step 3: Cross multiply
    558,784.30x = 838,176.45 × 402,486.70
  4. Step 4: Simplify right side
    558,784.30x = 337,354,873,378.22
  5. Step 5: Solve for x
    x = 337,354,873,378.22/558,784.30
  6. Step 6: Final answer
    x = 603,730.05

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Similar ratio
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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.