Home / 724,744.46-1,087,507.62-425,808.90

Finding the Fourth Proportional to 724,744.46, 1,087,507.62 and 425,808.90

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Solution

The fourth proportional to 724,744.46, 1,087,507.62 and 425,808.90 is: 638,943.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,744.46 : 1,087,507.62 = 425,808.90 : x
  2. Step 2: Convert to fraction form
    724,744.46/1,087,507.62 = 425,808.90/x
  3. Step 3: Cross multiply
    724,744.46x = 1,087,507.62 × 425,808.90
  4. Step 4: Simplify right side
    724,744.46x = 463,070,423,413.82
  5. Step 5: Solve for x
    x = 463,070,423,413.82/724,744.46
  6. Step 6: Final answer
    x = 638,943.03

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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.