Home / 781,423.06-1,078,370.25-423,727.06

Finding the Fourth Proportional to 781,423.06, 1,078,370.25 and 423,727.06

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Solution

The fourth proportional to 781,423.06, 1,078,370.25 and 423,727.06 is: 584,746.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,423.06 : 1,078,370.25 = 423,727.06 : x
  2. Step 2: Convert to fraction form
    781,423.06/1,078,370.25 = 423,727.06/x
  3. Step 3: Cross multiply
    781,423.06x = 1,078,370.25 × 423,727.06
  4. Step 4: Simplify right side
    781,423.06x = 456,934,655,623.97
  5. Step 5: Solve for x
    x = 456,934,655,623.97/781,423.06
  6. Step 6: Final answer
    x = 584,746.83

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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.