Home / 2,486,905.40-3,730,357.78-689,788.86

Finding the Fourth Proportional to 2,486,905.40, 3,730,357.78 and 689,788.86

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Solution

The fourth proportional to 2,486,905.40, 3,730,357.78 and 689,788.86 is: 1,034,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486,905.40 : 3,730,357.78 = 689,788.86 : x
  2. Step 2: Convert to fraction form
    2,486,905.40/3,730,357.78 = 689,788.86/x
  3. Step 3: Cross multiply
    2,486,905.40x = 3,730,357.78 × 689,788.86
  4. Step 4: Simplify right side
    2,486,905.40x = 2,573,159,248,314.99
  5. Step 5: Solve for x
    x = 2,573,159,248,314.99/2,486,905.40
  6. Step 6: Final answer
    x = 1,034,683.20

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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.