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Finding the Fourth Proportional to 885,470.84, 1,221,949.92 and 503,521

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Solution

The fourth proportional to 885,470.84, 1,221,949.92 and 503,521 is: 694,859.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,470.84 : 1,221,949.92 = 503,521 : x
  2. Step 2: Convert to fraction form
    885,470.84/1,221,949.92 = 503,521/x
  3. Step 3: Cross multiply
    885,470.84x = 1,221,949.92 × 503,521
  4. Step 4: Simplify right side
    885,470.84x = 615,277,445,668.32
  5. Step 5: Solve for x
    x = 615,277,445,668.32/885,470.84
  6. Step 6: Final answer
    x = 694,859.07

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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.