Home / 1,338,457.55-1,846,876.52-765,387

Finding the Fourth Proportional to 1,338,457.55, 1,846,876.52 and 765,387

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Solution

The fourth proportional to 1,338,457.55, 1,846,876.52 and 765,387 is: 1,056,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,457.55 : 1,846,876.52 = 765,387 : x
  2. Step 2: Convert to fraction form
    1,338,457.55/1,846,876.52 = 765,387/x
  3. Step 3: Cross multiply
    1,338,457.55x = 1,846,876.52 × 765,387
  4. Step 4: Simplify right side
    1,338,457.55x = 1,413,575,280,926.71
  5. Step 5: Solve for x
    x = 1,413,575,280,926.71/1,338,457.55
  6. Step 6: Final answer
    x = 1,056,122.61

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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.