Home / 484,581.20-668,587.80-290,938.64

Finding the Fourth Proportional to 484,581.20, 668,587.80 and 290,938.64

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Solution

The fourth proportional to 484,581.20, 668,587.80 and 290,938.64 is: 401,414.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,581.20 : 668,587.80 = 290,938.64 : x
  2. Step 2: Convert to fraction form
    484,581.20/668,587.80 = 290,938.64/x
  3. Step 3: Cross multiply
    484,581.20x = 668,587.80 × 290,938.64
  4. Step 4: Simplify right side
    484,581.20x = 194,518,025,252.59
  5. Step 5: Solve for x
    x = 194,518,025,252.59/484,581.20
  6. Step 6: Final answer
    x = 401,414.72

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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.