Home / 760,337.70-1,049,156.19-420,805.14

Finding the Fourth Proportional to 760,337.70, 1,049,156.19 and 420,805.14

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Solution

The fourth proportional to 760,337.70, 1,049,156.19 and 420,805.14 is: 580,650.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,337.70 : 1,049,156.19 = 420,805.14 : x
  2. Step 2: Convert to fraction form
    760,337.70/1,049,156.19 = 420,805.14/x
  3. Step 3: Cross multiply
    760,337.70x = 1,049,156.19 × 420,805.14
  4. Step 4: Simplify right side
    760,337.70x = 441,490,317,414.82
  5. Step 5: Solve for x
    x = 441,490,317,414.82/760,337.70
  6. Step 6: Final answer
    x = 580,650.31

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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.