Home / 723,859.18-998,926.86-401,569.28

Finding the Fourth Proportional to 723,859.18, 998,926.86 and 401,569.28

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Solution

The fourth proportional to 723,859.18, 998,926.86 and 401,569.28 is: 554,166.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,859.18 : 998,926.86 = 401,569.28 : x
  2. Step 2: Convert to fraction form
    723,859.18/998,926.86 = 401,569.28/x
  3. Step 3: Cross multiply
    723,859.18x = 998,926.86 × 401,569.28
  4. Step 4: Simplify right side
    723,859.18x = 401,138,339,942.86
  5. Step 5: Solve for x
    x = 401,138,339,942.86/723,859.18
  6. Step 6: Final answer
    x = 554,166.27

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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.