Home / 564,819.73-779,427.90-306,686.57

Finding the Fourth Proportional to 564,819.73, 779,427.90 and 306,686.57

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Solution

The fourth proportional to 564,819.73, 779,427.90 and 306,686.57 is: 423,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,819.73 : 779,427.90 = 306,686.57 : x
  2. Step 2: Convert to fraction form
    564,819.73/779,427.90 = 306,686.57/x
  3. Step 3: Cross multiply
    564,819.73x = 779,427.90 × 306,686.57
  4. Step 4: Simplify right side
    564,819.73x = 239,040,065,316.16
  5. Step 5: Solve for x
    x = 239,040,065,316.16/564,819.73
  6. Step 6: Final answer
    x = 423,214.80

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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.