Home / 739,823.68-1,020,847.22-449,284.15

Finding the Fourth Proportional to 739,823.68, 1,020,847.22 and 449,284.15

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Solution

The fourth proportional to 739,823.68, 1,020,847.22 and 449,284.15 is: 619,945.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,823.68 : 1,020,847.22 = 449,284.15 : x
  2. Step 2: Convert to fraction form
    739,823.68/1,020,847.22 = 449,284.15/x
  3. Step 3: Cross multiply
    739,823.68x = 1,020,847.22 × 449,284.15
  4. Step 4: Simplify right side
    739,823.68x = 458,650,473,271.14
  5. Step 5: Solve for x
    x = 458,650,473,271.14/739,823.68
  6. Step 6: Final answer
    x = 619,945.65

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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.