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Finding the Fourth Proportional to 566,195.63, 781,355.43 and 311,552.28

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Solution

The fourth proportional to 566,195.63, 781,355.43 and 311,552.28 is: 429,945.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,195.63 : 781,355.43 = 311,552.28 : x
  2. Step 2: Convert to fraction form
    566,195.63/781,355.43 = 311,552.28/x
  3. Step 3: Cross multiply
    566,195.63x = 781,355.43 × 311,552.28
  4. Step 4: Simplify right side
    566,195.63x = 243,433,065,706.88
  5. Step 5: Solve for x
    x = 243,433,065,706.88/566,195.63
  6. Step 6: Final answer
    x = 429,945.15

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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.