Home / 484,971.70-669,260.51-281,140.64

Finding the Fourth Proportional to 484,971.70, 669,260.51 and 281,140.64

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Solution

The fourth proportional to 484,971.70, 669,260.51 and 281,140.64 is: 387,973.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,971.70 : 669,260.51 = 281,140.64 : x
  2. Step 2: Convert to fraction form
    484,971.70/669,260.51 = 281,140.64/x
  3. Step 3: Cross multiply
    484,971.70x = 669,260.51 × 281,140.64
  4. Step 4: Simplify right side
    484,971.70x = 188,156,326,702.42
  5. Step 5: Solve for x
    x = 188,156,326,702.42/484,971.70
  6. Step 6: Final answer
    x = 387,973.83

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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.