Home / 804,989.20-1,208,261.40-490,061.20

Finding the Fourth Proportional to 804,989.20, 1,208,261.40 and 490,061.20

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Solution

The fourth proportional to 804,989.20, 1,208,261.40 and 490,061.20 is: 735,565.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,989.20 : 1,208,261.40 = 490,061.20 : x
  2. Step 2: Convert to fraction form
    804,989.20/1,208,261.40 = 490,061.20/x
  3. Step 3: Cross multiply
    804,989.20x = 1,208,261.40 × 490,061.20
  4. Step 4: Simplify right side
    804,989.20x = 592,122,031,597.68
  5. Step 5: Solve for x
    x = 592,122,031,597.68/804,989.20
  6. Step 6: Final answer
    x = 735,565.19

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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.