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Finding the Fourth Proportional to 620,925.06, 930,608.49 and 265,521.18

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Solution

The fourth proportional to 620,925.06, 930,608.49 and 265,521.18 is: 397,948.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,925.06 : 930,608.49 = 265,521.18 : x
  2. Step 2: Convert to fraction form
    620,925.06/930,608.49 = 265,521.18/x
  3. Step 3: Cross multiply
    620,925.06x = 930,608.49 × 265,521.18
  4. Step 4: Simplify right side
    620,925.06x = 247,096,264,382.82
  5. Step 5: Solve for x
    x = 247,096,264,382.82/620,925.06
  6. Step 6: Final answer
    x = 397,948.61

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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.