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Finding the Fourth Proportional to 560,128.66, 772,757.49 and 344,895.46

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Solution

The fourth proportional to 560,128.66, 772,757.49 and 344,895.46 is: 475,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,128.66 : 772,757.49 = 344,895.46 : x
  2. Step 2: Convert to fraction form
    560,128.66/772,757.49 = 344,895.46/x
  3. Step 3: Cross multiply
    560,128.66x = 772,757.49 × 344,895.46
  4. Step 4: Simplify right side
    560,128.66x = 266,520,549,982.00
  5. Step 5: Solve for x
    x = 266,520,549,982.00/560,128.66
  6. Step 6: Final answer
    x = 475,820.23

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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.