Home / 676,640.35-1,014,642.68-392,411.68

Finding the Fourth Proportional to 676,640.35, 1,014,642.68 and 392,411.68

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Solution

The fourth proportional to 676,640.35, 1,014,642.68 and 392,411.68 is: 588,433.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,640.35 : 1,014,642.68 = 392,411.68 : x
  2. Step 2: Convert to fraction form
    676,640.35/1,014,642.68 = 392,411.68/x
  3. Step 3: Cross multiply
    676,640.35x = 1,014,642.68 × 392,411.68
  4. Step 4: Simplify right side
    676,640.35x = 398,157,631,623.23
  5. Step 5: Solve for x
    x = 398,157,631,623.23/676,640.35
  6. Step 6: Final answer
    x = 588,433.18

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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.