Home / 724,341.20-1,087,548.60-409,413.20

Finding the Fourth Proportional to 724,341.20, 1,087,548.60 and 409,413.20

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Solution

The fourth proportional to 724,341.20, 1,087,548.60 and 409,413.20 is: 614,705.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,341.20 : 1,087,548.60 = 409,413.20 : x
  2. Step 2: Convert to fraction form
    724,341.20/1,087,548.60 = 409,413.20/x
  3. Step 3: Cross multiply
    724,341.20x = 1,087,548.60 × 409,413.20
  4. Step 4: Simplify right side
    724,341.20x = 445,256,752,481.52
  5. Step 5: Solve for x
    x = 445,256,752,481.52/724,341.20
  6. Step 6: Final answer
    x = 614,705.82

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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.