Home / 812,795.78-1,121,551.89-468,644.66

Finding the Fourth Proportional to 812,795.78, 1,121,551.89 and 468,644.66

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Solution

The fourth proportional to 812,795.78, 1,121,551.89 and 468,644.66 is: 646,668.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,795.78 : 1,121,551.89 = 468,644.66 : x
  2. Step 2: Convert to fraction form
    812,795.78/1,121,551.89 = 468,644.66/x
  3. Step 3: Cross multiply
    812,795.78x = 1,121,551.89 × 468,644.66
  4. Step 4: Simplify right side
    812,795.78x = 525,609,304,161.41
  5. Step 5: Solve for x
    x = 525,609,304,161.41/812,795.78
  6. Step 6: Final answer
    x = 646,668.35

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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.