Home / 828,905.30-1,244,279.55-513,718.10

Finding the Fourth Proportional to 828,905.30, 1,244,279.55 and 513,718.10

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Solution

The fourth proportional to 828,905.30, 1,244,279.55 and 513,718.10 is: 771,148.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,905.30 : 1,244,279.55 = 513,718.10 : x
  2. Step 2: Convert to fraction form
    828,905.30/1,244,279.55 = 513,718.10/x
  3. Step 3: Cross multiply
    828,905.30x = 1,244,279.55 × 513,718.10
  4. Step 4: Simplify right side
    828,905.30x = 639,208,926,294.86
  5. Step 5: Solve for x
    x = 639,208,926,294.86/828,905.30
  6. Step 6: Final answer
    x = 771,148.32

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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.