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Finding the Fourth Proportional to 887,763.89, 1,225,123.13 and 479,873.63

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Solution

The fourth proportional to 887,763.89, 1,225,123.13 and 479,873.63 is: 662,230.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,763.89 : 1,225,123.13 = 479,873.63 : x
  2. Step 2: Convert to fraction form
    887,763.89/1,225,123.13 = 479,873.63/x
  3. Step 3: Cross multiply
    887,763.89x = 1,225,123.13 × 479,873.63
  4. Step 4: Simplify right side
    887,763.89x = 587,904,283,590.06
  5. Step 5: Solve for x
    x = 587,904,283,590.06/887,763.89
  6. Step 6: Final answer
    x = 662,230.45

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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.