Home / 788,634.20-1,182,951.30-488,140.40

Finding the Fourth Proportional to 788,634.20, 1,182,951.30 and 488,140.40

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Solution

The fourth proportional to 788,634.20, 1,182,951.30 and 488,140.40 is: 732,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,634.20 : 1,182,951.30 = 488,140.40 : x
  2. Step 2: Convert to fraction form
    788,634.20/1,182,951.30 = 488,140.40/x
  3. Step 3: Cross multiply
    788,634.20x = 1,182,951.30 × 488,140.40
  4. Step 4: Simplify right side
    788,634.20x = 577,446,320,762.52
  5. Step 5: Solve for x
    x = 577,446,320,762.52/788,634.20
  6. Step 6: Final answer
    x = 732,210.60

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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.