Home / 3,118,123.76-4,303,023.88-1,687,339.76

Finding the Fourth Proportional to 3,118,123.76, 4,303,023.88 and 1,687,339.76

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Solution

The fourth proportional to 3,118,123.76, 4,303,023.88 and 1,687,339.76 is: 2,328,535.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,123.76 : 4,303,023.88 = 1,687,339.76 : x
  2. Step 2: Convert to fraction form
    3,118,123.76/4,303,023.88 = 1,687,339.76/x
  3. Step 3: Cross multiply
    3,118,123.76x = 4,303,023.88 × 1,687,339.76
  4. Step 4: Simplify right side
    3,118,123.76x = 7,260,663,280,953.47
  5. Step 5: Solve for x
    x = 7,260,663,280,953.47/3,118,123.76
  6. Step 6: Final answer
    x = 2,328,535.95

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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.