Home / 578,646.20-867,969.30-485,334.20

Finding the Fourth Proportional to 578,646.20, 867,969.30 and 485,334.20

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Solution

The fourth proportional to 578,646.20, 867,969.30 and 485,334.20 is: 728,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,646.20 : 867,969.30 = 485,334.20 : x
  2. Step 2: Convert to fraction form
    578,646.20/867,969.30 = 485,334.20/x
  3. Step 3: Cross multiply
    578,646.20x = 867,969.30 × 485,334.20
  4. Step 4: Simplify right side
    578,646.20x = 421,255,185,840.06
  5. Step 5: Solve for x
    x = 421,255,185,840.06/578,646.20
  6. Step 6: Final answer
    x = 728,001.30

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Similar ratio
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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.