Home / 728,342.85-1,004,700.98-455,937.65

Finding the Fourth Proportional to 728,342.85, 1,004,700.98 and 455,937.65

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Solution

The fourth proportional to 728,342.85, 1,004,700.98 and 455,937.65 is: 628,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,342.85 : 1,004,700.98 = 455,937.65 : x
  2. Step 2: Convert to fraction form
    728,342.85/1,004,700.98 = 455,937.65/x
  3. Step 3: Cross multiply
    728,342.85x = 1,004,700.98 × 455,937.65
  4. Step 4: Simplify right side
    728,342.85x = 458,081,003,773.90
  5. Step 5: Solve for x
    x = 458,081,003,773.90/728,342.85
  6. Step 6: Final answer
    x = 628,935.95

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1.5x scale

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.