Home / 729,435.18-1,006,788.51-427,726.38

Finding the Fourth Proportional to 729,435.18, 1,006,788.51 and 427,726.38

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Solution

The fourth proportional to 729,435.18, 1,006,788.51 and 427,726.38 is: 590,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,435.18 : 1,006,788.51 = 427,726.38 : x
  2. Step 2: Convert to fraction form
    729,435.18/1,006,788.51 = 427,726.38/x
  3. Step 3: Cross multiply
    729,435.18x = 1,006,788.51 × 427,726.38
  4. Step 4: Simplify right side
    729,435.18x = 430,630,004,807.89
  5. Step 5: Solve for x
    x = 430,630,004,807.89/729,435.18
  6. Step 6: Final answer
    x = 590,360.89

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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.