Home / 723,412.07-998,306.93-401,113.88

Finding the Fourth Proportional to 723,412.07, 998,306.93 and 401,113.88

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Solution

The fourth proportional to 723,412.07, 998,306.93 and 401,113.88 is: 553,536.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,412.07 : 998,306.93 = 401,113.88 : x
  2. Step 2: Convert to fraction form
    723,412.07/998,306.93 = 401,113.88/x
  3. Step 3: Cross multiply
    723,412.07x = 998,306.93 × 401,113.88
  4. Step 4: Simplify right side
    723,412.07x = 400,434,762,134.44
  5. Step 5: Solve for x
    x = 400,434,762,134.44/723,412.07
  6. Step 6: Final answer
    x = 553,536.20

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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.