Home / 779,404.20-1,169,106.30-478,910.40

Finding the Fourth Proportional to 779,404.20, 1,169,106.30 and 478,910.40

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Solution

The fourth proportional to 779,404.20, 1,169,106.30 and 478,910.40 is: 718,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,404.20 : 1,169,106.30 = 478,910.40 : x
  2. Step 2: Convert to fraction form
    779,404.20/1,169,106.30 = 478,910.40/x
  3. Step 3: Cross multiply
    779,404.20x = 1,169,106.30 × 478,910.40
  4. Step 4: Simplify right side
    779,404.20x = 559,897,165,775.52
  5. Step 5: Solve for x
    x = 559,897,165,775.52/779,404.20
  6. Step 6: Final answer
    x = 718,365.60

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Double scale
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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.