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Finding the Fourth Proportional to 682,655.20, 942,086.80 and 372,574.72

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Solution

The fourth proportional to 682,655.20, 942,086.80 and 372,574.72 is: 514,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,655.20 : 942,086.80 = 372,574.72 : x
  2. Step 2: Convert to fraction form
    682,655.20/942,086.80 = 372,574.72/x
  3. Step 3: Cross multiply
    682,655.20x = 942,086.80 × 372,574.72
  4. Step 4: Simplify right side
    682,655.20x = 350,997,725,725.70
  5. Step 5: Solve for x
    x = 350,997,725,725.70/682,655.20
  6. Step 6: Final answer
    x = 514,165.46

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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.