Home / 1,004,347.89-1,386,220.79-660,215.61

Finding the Fourth Proportional to 1,004,347.89, 1,386,220.79 and 660,215.61

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Solution

The fourth proportional to 1,004,347.89, 1,386,220.79 and 660,215.61 is: 911,242.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004,347.89 : 1,386,220.79 = 660,215.61 : x
  2. Step 2: Convert to fraction form
    1,004,347.89/1,386,220.79 = 660,215.61/x
  3. Step 3: Cross multiply
    1,004,347.89x = 1,386,220.79 × 660,215.61
  4. Step 4: Simplify right side
    1,004,347.89x = 915,204,601,163.45
  5. Step 5: Solve for x
    x = 915,204,601,163.45/1,004,347.89
  6. Step 6: Final answer
    x = 911,242.62

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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.