Home / 781,660.02-1,077,834.24-509,222.70

Finding the Fourth Proportional to 781,660.02, 1,077,834.24 and 509,222.70

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Solution

The fourth proportional to 781,660.02, 1,077,834.24 and 509,222.70 is: 702,169.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,660.02 : 1,077,834.24 = 509,222.70 : x
  2. Step 2: Convert to fraction form
    781,660.02/1,077,834.24 = 509,222.70/x
  3. Step 3: Cross multiply
    781,660.02x = 1,077,834.24 × 509,222.70
  4. Step 4: Simplify right side
    781,660.02x = 548,857,661,845.25
  5. Step 5: Solve for x
    x = 548,857,661,845.25/781,660.02
  6. Step 6: Final answer
    x = 702,169.29

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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.