Home / 1,039,820.28-1,434,184.34-657,478

Finding the Fourth Proportional to 1,039,820.28, 1,434,184.34 and 657,478

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Solution

The fourth proportional to 1,039,820.28, 1,434,184.34 and 657,478 is: 906,834.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,820.28 : 1,434,184.34 = 657,478 : x
  2. Step 2: Convert to fraction form
    1,039,820.28/1,434,184.34 = 657,478/x
  3. Step 3: Cross multiply
    1,039,820.28x = 1,434,184.34 × 657,478
  4. Step 4: Simplify right side
    1,039,820.28x = 942,944,651,494.52
  5. Step 5: Solve for x
    x = 942,944,651,494.52/1,039,820.28
  6. Step 6: Final answer
    x = 906,834.26

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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.