Home / 1,331,575.18-1,997,658.76-621,215.71

Finding the Fourth Proportional to 1,331,575.18, 1,997,658.76 and 621,215.71

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Solution

The fourth proportional to 1,331,575.18, 1,997,658.76 and 621,215.71 is: 931,961.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,575.18 : 1,997,658.76 = 621,215.71 : x
  2. Step 2: Convert to fraction form
    1,331,575.18/1,997,658.76 = 621,215.71/x
  3. Step 3: Cross multiply
    1,331,575.18x = 1,997,658.76 × 621,215.71
  4. Step 4: Simplify right side
    1,331,575.18x = 1,240,977,004,931.12
  5. Step 5: Solve for x
    x = 1,240,977,004,931.12/1,331,575.18
  6. Step 6: Final answer
    x = 931,961.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.