Home / 880,992.32-1,215,762.72-478,587.20

Finding the Fourth Proportional to 880,992.32, 1,215,762.72 and 478,587.20

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Solution

The fourth proportional to 880,992.32, 1,215,762.72 and 478,587.20 is: 660,446.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,992.32 : 1,215,762.72 = 478,587.20 : x
  2. Step 2: Convert to fraction form
    880,992.32/1,215,762.72 = 478,587.20/x
  3. Step 3: Cross multiply
    880,992.32x = 1,215,762.72 × 478,587.20
  4. Step 4: Simplify right side
    880,992.32x = 581,848,476,029.18
  5. Step 5: Solve for x
    x = 581,848,476,029.18/880,992.32
  6. Step 6: Final answer
    x = 660,446.71

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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.