Home / 724,023.72-999,207.45-401,794.74

Finding the Fourth Proportional to 724,023.72, 999,207.45 and 401,794.74

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Solution

The fourth proportional to 724,023.72, 999,207.45 and 401,794.74 is: 554,507.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,023.72 : 999,207.45 = 401,794.74 : x
  2. Step 2: Convert to fraction form
    724,023.72/999,207.45 = 401,794.74/x
  3. Step 3: Cross multiply
    724,023.72x = 999,207.45 × 401,794.74
  4. Step 4: Simplify right side
    724,023.72x = 401,476,297,578.81
  5. Step 5: Solve for x
    x = 401,476,297,578.81/724,023.72
  6. Step 6: Final answer
    x = 554,507.11

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1.5x scale

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.