Home / 804,587.20-1,207,658.40-489,659.20

Finding the Fourth Proportional to 804,587.20, 1,207,658.40 and 489,659.20

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Solution

The fourth proportional to 804,587.20, 1,207,658.40 and 489,659.20 is: 734,962.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,587.20 : 1,207,658.40 = 489,659.20 : x
  2. Step 2: Convert to fraction form
    804,587.20/1,207,658.40 = 489,659.20/x
  3. Step 3: Cross multiply
    804,587.20x = 1,207,658.40 × 489,659.20
  4. Step 4: Simplify right side
    804,587.20x = 591,341,046,017.28
  5. Step 5: Solve for x
    x = 591,341,046,017.28/804,587.20
  6. Step 6: Final answer
    x = 734,962.04

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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.