Home / 724,027.71-999,158.13-401,740.05

Finding the Fourth Proportional to 724,027.71, 999,158.13 and 401,740.05

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Solution

The fourth proportional to 724,027.71, 999,158.13 and 401,740.05 is: 554,401.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,027.71 : 999,158.13 = 401,740.05 : x
  2. Step 2: Convert to fraction form
    724,027.71/999,158.13 = 401,740.05/x
  3. Step 3: Cross multiply
    724,027.71x = 999,158.13 × 401,740.05
  4. Step 4: Simplify right side
    724,027.71x = 401,401,837,104.11
  5. Step 5: Solve for x
    x = 401,401,837,104.11/724,027.71
  6. Step 6: Final answer
    x = 554,401.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.