Home / 426,959.57-639,883.73-173,943.72

Finding the Fourth Proportional to 426,959.57, 639,883.73 and 173,943.72

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Solution

The fourth proportional to 426,959.57, 639,883.73 and 173,943.72 is: 260,689.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,959.57 : 639,883.73 = 173,943.72 : x
  2. Step 2: Convert to fraction form
    426,959.57/639,883.73 = 173,943.72/x
  3. Step 3: Cross multiply
    426,959.57x = 639,883.73 × 173,943.72
  4. Step 4: Simplify right side
    426,959.57x = 111,303,756,798.54
  5. Step 5: Solve for x
    x = 111,303,756,798.54/426,959.57
  6. Step 6: Final answer
    x = 260,689.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.