Home / 917,997.60-1,376,305.20-385,082.40

Finding the Fourth Proportional to 917,997.60, 1,376,305.20 and 385,082.40

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Solution

The fourth proportional to 917,997.60, 1,376,305.20 and 385,082.40 is: 577,333.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,997.60 : 1,376,305.20 = 385,082.40 : x
  2. Step 2: Convert to fraction form
    917,997.60/1,376,305.20 = 385,082.40/x
  3. Step 3: Cross multiply
    917,997.60x = 1,376,305.20 × 385,082.40
  4. Step 4: Simplify right side
    917,997.60x = 529,990,909,548.48
  5. Step 5: Solve for x
    x = 529,990,909,548.48/917,997.60
  6. Step 6: Final answer
    x = 577,333.65

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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.