Home / 804,988.80-1,207,483.20-490,060.80

Finding the Fourth Proportional to 804,988.80, 1,207,483.20 and 490,060.80

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Solution

The fourth proportional to 804,988.80, 1,207,483.20 and 490,060.80 is: 735,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,988.80 : 1,207,483.20 = 490,060.80 : x
  2. Step 2: Convert to fraction form
    804,988.80/1,207,483.20 = 490,060.80/x
  3. Step 3: Cross multiply
    804,988.80x = 1,207,483.20 × 490,060.80
  4. Step 4: Simplify right side
    804,988.80x = 591,740,182,978.56
  5. Step 5: Solve for x
    x = 591,740,182,978.56/804,988.80
  6. Step 6: Final answer
    x = 735,091.20

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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.