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Finding the Fourth Proportional to 880,770.78, 1,320,818.13 and 375,011.10

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Solution

The fourth proportional to 880,770.78, 1,320,818.13 and 375,011.10 is: 562,372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,770.78 : 1,320,818.13 = 375,011.10 : x
  2. Step 2: Convert to fraction form
    880,770.78/1,320,818.13 = 375,011.10/x
  3. Step 3: Cross multiply
    880,770.78x = 1,320,818.13 × 375,011.10
  4. Step 4: Simplify right side
    880,770.78x = 495,321,459,831.24
  5. Step 5: Solve for x
    x = 495,321,459,831.24/880,770.78
  6. Step 6: Final answer
    x = 562,372.72

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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.