Home / 819,109.25-1,130,339.93-474,959.70

Finding the Fourth Proportional to 819,109.25, 1,130,339.93 and 474,959.70

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Solution

The fourth proportional to 819,109.25, 1,130,339.93 and 474,959.70 is: 655,426.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,109.25 : 1,130,339.93 = 474,959.70 : x
  2. Step 2: Convert to fraction form
    819,109.25/1,130,339.93 = 474,959.70/x
  3. Step 3: Cross multiply
    819,109.25x = 1,130,339.93 × 474,959.70
  4. Step 4: Simplify right side
    819,109.25x = 536,865,910,037.57
  5. Step 5: Solve for x
    x = 536,865,910,037.57/819,109.25
  6. Step 6: Final answer
    x = 655,426.51

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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.