Home / 728,856.02-1,005,822.92-406,587

Finding the Fourth Proportional to 728,856.02, 1,005,822.92 and 406,587

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Solution

The fourth proportional to 728,856.02, 1,005,822.92 and 406,587 is: 561,090.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,856.02 : 1,005,822.92 = 406,587 : x
  2. Step 2: Convert to fraction form
    728,856.02/1,005,822.92 = 406,587/x
  3. Step 3: Cross multiply
    728,856.02x = 1,005,822.92 × 406,587
  4. Step 4: Simplify right side
    728,856.02x = 408,954,523,574.04
  5. Step 5: Solve for x
    x = 408,954,523,574.04/728,856.02
  6. Step 6: Final answer
    x = 561,090.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.