Home / 560,821.78-773,904.76-306,123.76

Finding the Fourth Proportional to 560,821.78, 773,904.76 and 306,123.76

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Solution

The fourth proportional to 560,821.78, 773,904.76 and 306,123.76 is: 422,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,821.78 : 773,904.76 = 306,123.76 : x
  2. Step 2: Convert to fraction form
    560,821.78/773,904.76 = 306,123.76/x
  3. Step 3: Cross multiply
    560,821.78x = 773,904.76 × 306,123.76
  4. Step 4: Simplify right side
    560,821.78x = 236,910,635,013.10
  5. Step 5: Solve for x
    x = 236,910,635,013.10/560,821.78
  6. Step 6: Final answer
    x = 422,434.80

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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.