Home / 727,718.10-1,092,225.15-427,823.70

Finding the Fourth Proportional to 727,718.10, 1,092,225.15 and 427,823.70

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Solution

The fourth proportional to 727,718.10, 1,092,225.15 and 427,823.70 is: 642,116.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,718.10 : 1,092,225.15 = 427,823.70 : x
  2. Step 2: Convert to fraction form
    727,718.10/1,092,225.15 = 427,823.70/x
  3. Step 3: Cross multiply
    727,718.10x = 1,092,225.15 × 427,823.70
  4. Step 4: Simplify right side
    727,718.10x = 467,279,804,906.06
  5. Step 5: Solve for x
    x = 467,279,804,906.06/727,718.10
  6. Step 6: Final answer
    x = 642,116.51

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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.