Home / 1,239,125.16-1,855,686.60-630,311.76

Finding the Fourth Proportional to 1,239,125.16, 1,855,686.60 and 630,311.76

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Solution

The fourth proportional to 1,239,125.16, 1,855,686.60 and 630,311.76 is: 943,941.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,125.16 : 1,855,686.60 = 630,311.76 : x
  2. Step 2: Convert to fraction form
    1,239,125.16/1,855,686.60 = 630,311.76/x
  3. Step 3: Cross multiply
    1,239,125.16x = 1,855,686.60 × 630,311.76
  4. Step 4: Simplify right side
    1,239,125.16x = 1,169,661,086,854.42
  5. Step 5: Solve for x
    x = 1,169,661,086,854.42/1,239,125.16
  6. Step 6: Final answer
    x = 943,941.04

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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.