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Finding the Fourth Proportional to 546,718.22, 754,471.47 and 305,000.80

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Solution

The fourth proportional to 546,718.22, 754,471.47 and 305,000.80 is: 420,901.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,718.22 : 754,471.47 = 305,000.80 : x
  2. Step 2: Convert to fraction form
    546,718.22/754,471.47 = 305,000.80/x
  3. Step 3: Cross multiply
    546,718.22x = 754,471.47 × 305,000.80
  4. Step 4: Simplify right side
    546,718.22x = 230,114,400,326.94
  5. Step 5: Solve for x
    x = 230,114,400,326.94/546,718.22
  6. Step 6: Final answer
    x = 420,901.28

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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.