Home / 739,765.12-1,020,875.52-417,542.80

Finding the Fourth Proportional to 739,765.12, 1,020,875.52 and 417,542.80

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Solution

The fourth proportional to 739,765.12, 1,020,875.52 and 417,542.80 is: 576,208.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,765.12 : 1,020,875.52 = 417,542.80 : x
  2. Step 2: Convert to fraction form
    739,765.12/1,020,875.52 = 417,542.80/x
  3. Step 3: Cross multiply
    739,765.12x = 1,020,875.52 × 417,542.80
  4. Step 4: Simplify right side
    739,765.12x = 426,259,223,072.26
  5. Step 5: Solve for x
    x = 426,259,223,072.26/739,765.12
  6. Step 6: Final answer
    x = 576,208.87

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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.