Home / 827,565.40-1,141,917.78-478,695.16

Finding the Fourth Proportional to 827,565.40, 1,141,917.78 and 478,695.16

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Solution

The fourth proportional to 827,565.40, 1,141,917.78 and 478,695.16 is: 660,528.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,565.40 : 1,141,917.78 = 478,695.16 : x
  2. Step 2: Convert to fraction form
    827,565.40/1,141,917.78 = 478,695.16/x
  3. Step 3: Cross multiply
    827,565.40x = 1,141,917.78 × 478,695.16
  4. Step 4: Simplify right side
    827,565.40x = 546,630,514,403.95
  5. Step 5: Solve for x
    x = 546,630,514,403.95/827,565.40
  6. Step 6: Final answer
    x = 660,528.48

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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.