Home / 484,433.28-668,139.20-314,722.08

Finding the Fourth Proportional to 484,433.28, 668,139.20 and 314,722.08

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Solution

The fourth proportional to 484,433.28, 668,139.20 and 314,722.08 is: 434,070.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,433.28 : 668,139.20 = 314,722.08 : x
  2. Step 2: Convert to fraction form
    484,433.28/668,139.20 = 314,722.08/x
  3. Step 3: Cross multiply
    484,433.28x = 668,139.20 × 314,722.08
  4. Step 4: Simplify right side
    484,433.28x = 210,278,158,753.54
  5. Step 5: Solve for x
    x = 210,278,158,753.54/484,433.28
  6. Step 6: Final answer
    x = 434,070.42

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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.