Home / 728,795.02-1,005,693.82-422,847.70

Finding the Fourth Proportional to 728,795.02, 1,005,693.82 and 422,847.70

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Solution

The fourth proportional to 728,795.02, 1,005,693.82 and 422,847.70 is: 583,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,795.02 : 1,005,693.82 = 422,847.70 : x
  2. Step 2: Convert to fraction form
    728,795.02/1,005,693.82 = 422,847.70/x
  3. Step 3: Cross multiply
    728,795.02x = 1,005,693.82 × 422,847.70
  4. Step 4: Simplify right side
    728,795.02x = 425,255,318,691.21
  5. Step 5: Solve for x
    x = 425,255,318,691.21/728,795.02
  6. Step 6: Final answer
    x = 583,504.70

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Double scale
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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.