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Finding the Fourth Proportional to 723,353.32, 998,225.86 and 401,055.13

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Solution

The fourth proportional to 723,353.32, 998,225.86 and 401,055.13 is: 553,455.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,353.32 : 998,225.86 = 401,055.13 : x
  2. Step 2: Convert to fraction form
    723,353.32/998,225.86 = 401,055.13/x
  3. Step 3: Cross multiply
    723,353.32x = 998,225.86 × 401,055.13
  4. Step 4: Simplify right side
    723,353.32x = 400,343,595,055.26
  5. Step 5: Solve for x
    x = 400,343,595,055.26/723,353.32
  6. Step 6: Final answer
    x = 553,455.12

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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.