Home / 484,319.26-668,350.15-280,378.81

Finding the Fourth Proportional to 484,319.26, 668,350.15 and 280,378.81

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Solution

The fourth proportional to 484,319.26, 668,350.15 and 280,378.81 is: 386,916.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,319.26 : 668,350.15 = 280,378.81 : x
  2. Step 2: Convert to fraction form
    484,319.26/668,350.15 = 280,378.81/x
  3. Step 3: Cross multiply
    484,319.26x = 668,350.15 × 280,378.81
  4. Step 4: Simplify right side
    484,319.26x = 187,391,219,720.32
  5. Step 5: Solve for x
    x = 187,391,219,720.32/484,319.26
  6. Step 6: Final answer
    x = 386,916.72

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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.