Home / 723,567.20-998,451.60-401,271.68

Finding the Fourth Proportional to 723,567.20, 998,451.60 and 401,271.68

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Solution

The fourth proportional to 723,567.20, 998,451.60 and 401,271.68 is: 553,715.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,567.20 : 998,451.60 = 401,271.68 : x
  2. Step 2: Convert to fraction form
    723,567.20/998,451.60 = 401,271.68/x
  3. Step 3: Cross multiply
    723,567.20x = 998,451.60 × 401,271.68
  4. Step 4: Simplify right side
    723,567.20x = 400,650,350,930.69
  5. Step 5: Solve for x
    x = 400,650,350,930.69/723,567.20
  6. Step 6: Final answer
    x = 553,715.47

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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.