Home / 805,001.60-1,207,502.40-385,097.60

Finding the Fourth Proportional to 805,001.60, 1,207,502.40 and 385,097.60

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Solution

The fourth proportional to 805,001.60, 1,207,502.40 and 385,097.60 is: 577,646.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,001.60 : 1,207,502.40 = 385,097.60 : x
  2. Step 2: Convert to fraction form
    805,001.60/1,207,502.40 = 385,097.60/x
  3. Step 3: Cross multiply
    805,001.60x = 1,207,502.40 × 385,097.60
  4. Step 4: Simplify right side
    805,001.60x = 465,006,276,234.24
  5. Step 5: Solve for x
    x = 465,006,276,234.24/805,001.60
  6. Step 6: Final answer
    x = 577,646.40

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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.