Home / 723,269.75-998,110.59-400,971.56

Finding the Fourth Proportional to 723,269.75, 998,110.59 and 400,971.56

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Solution

The fourth proportional to 723,269.75, 998,110.59 and 400,971.56 is: 553,339.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,269.75 : 998,110.59 = 400,971.56 : x
  2. Step 2: Convert to fraction form
    723,269.75/998,110.59 = 400,971.56/x
  3. Step 3: Cross multiply
    723,269.75x = 998,110.59 × 400,971.56
  4. Step 4: Simplify right side
    723,269.75x = 400,213,955,334.27
  5. Step 5: Solve for x
    x = 400,213,955,334.27/723,269.75
  6. Step 6: Final answer
    x = 553,339.83

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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.