Home / 880,842.25-1,215,563.52-478,434.25

Finding the Fourth Proportional to 880,842.25, 1,215,563.52 and 478,434.25

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Solution

The fourth proportional to 880,842.25, 1,215,563.52 and 478,434.25 is: 660,239.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,842.25 : 1,215,563.52 = 478,434.25 : x
  2. Step 2: Convert to fraction form
    880,842.25/1,215,563.52 = 478,434.25/x
  3. Step 3: Cross multiply
    880,842.25x = 1,215,563.52 × 478,434.25
  4. Step 4: Simplify right side
    880,842.25x = 581,567,221,018.56
  5. Step 5: Solve for x
    x = 581,567,221,018.56/880,842.25
  6. Step 6: Final answer
    x = 660,239.92

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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.