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Finding the Fourth Proportional to 705,779.28, 1,058,073.74 and 306,119

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Solution

The fourth proportional to 705,779.28, 1,058,073.74 and 306,119 is: 458,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,779.28 : 1,058,073.74 = 306,119 : x
  2. Step 2: Convert to fraction form
    705,779.28/1,058,073.74 = 306,119/x
  3. Step 3: Cross multiply
    705,779.28x = 1,058,073.74 × 306,119
  4. Step 4: Simplify right side
    705,779.28x = 323,896,475,215.06
  5. Step 5: Solve for x
    x = 323,896,475,215.06/705,779.28
  6. Step 6: Final answer
    x = 458,920.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.