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Finding the Fourth Proportional to 880,395, 1,214,945.10 and 477,987

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Solution

The fourth proportional to 880,395, 1,214,945.10 and 477,987 is: 659,622.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,395 : 1,214,945.10 = 477,987 : x
  2. Step 2: Convert to fraction form
    880,395/1,214,945.10 = 477,987/x
  3. Step 3: Cross multiply
    880,395x = 1,214,945.10 × 477,987
  4. Step 4: Simplify right side
    880,395x = 580,727,963,513.70
  5. Step 5: Solve for x
    x = 580,727,963,513.70/880,395
  6. Step 6: Final answer
    x = 659,622.06

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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.