Home / 1,492,913.80-2,239,370.70-861,502.60

Finding the Fourth Proportional to 1,492,913.80, 2,239,370.70 and 861,502.60

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Solution

The fourth proportional to 1,492,913.80, 2,239,370.70 and 861,502.60 is: 1,292,253.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492,913.80 : 2,239,370.70 = 861,502.60 : x
  2. Step 2: Convert to fraction form
    1,492,913.80/2,239,370.70 = 861,502.60/x
  3. Step 3: Cross multiply
    1,492,913.80x = 2,239,370.70 × 861,502.60
  4. Step 4: Simplify right side
    1,492,913.80x = 1,929,223,680,413.82
  5. Step 5: Solve for x
    x = 1,929,223,680,413.82/1,492,913.80
  6. Step 6: Final answer
    x = 1,292,253.90

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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.