Home / 711,363.20-1,068,273.60-379,587.20

Finding the Fourth Proportional to 711,363.20, 1,068,273.60 and 379,587.20

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Solution

The fourth proportional to 711,363.20, 1,068,273.60 and 379,587.20 is: 570,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,363.20 : 1,068,273.60 = 379,587.20 : x
  2. Step 2: Convert to fraction form
    711,363.20/1,068,273.60 = 379,587.20/x
  3. Step 3: Cross multiply
    711,363.20x = 1,068,273.60 × 379,587.20
  4. Step 4: Simplify right side
    711,363.20x = 405,502,984,657.92
  5. Step 5: Solve for x
    x = 405,502,984,657.92/711,363.20
  6. Step 6: Final answer
    x = 570,036.49

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Half scale
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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.