Home / 788,632.20-1,182,948.30-488,138.40

Finding the Fourth Proportional to 788,632.20, 1,182,948.30 and 488,138.40

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Solution

The fourth proportional to 788,632.20, 1,182,948.30 and 488,138.40 is: 732,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,632.20 : 1,182,948.30 = 488,138.40 : x
  2. Step 2: Convert to fraction form
    788,632.20/1,182,948.30 = 488,138.40/x
  3. Step 3: Cross multiply
    788,632.20x = 1,182,948.30 × 488,138.40
  4. Step 4: Simplify right side
    788,632.20x = 577,442,490,444.72
  5. Step 5: Solve for x
    x = 577,442,490,444.72/788,632.20
  6. Step 6: Final answer
    x = 732,207.60

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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.