Home / 728,329.32-1,005,095.08-406,032.95

Finding the Fourth Proportional to 728,329.32, 1,005,095.08 and 406,032.95

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Solution

The fourth proportional to 728,329.32, 1,005,095.08 and 406,032.95 is: 560,325.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,329.32 : 1,005,095.08 = 406,032.95 : x
  2. Step 2: Convert to fraction form
    728,329.32/1,005,095.08 = 406,032.95/x
  3. Step 3: Cross multiply
    728,329.32x = 1,005,095.08 × 406,032.95
  4. Step 4: Simplify right side
    728,329.32x = 408,101,723,383.17
  5. Step 5: Solve for x
    x = 408,101,723,383.17/728,329.32
  6. Step 6: Final answer
    x = 560,325.82

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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.