Home / 1,355,237.76-1,870,215.12-743,377.92

Finding the Fourth Proportional to 1,355,237.76, 1,870,215.12 and 743,377.92

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Solution

The fourth proportional to 1,355,237.76, 1,870,215.12 and 743,377.92 is: 1,025,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,237.76 : 1,870,215.12 = 743,377.92 : x
  2. Step 2: Convert to fraction form
    1,355,237.76/1,870,215.12 = 743,377.92/x
  3. Step 3: Cross multiply
    1,355,237.76x = 1,870,215.12 × 743,377.92
  4. Step 4: Simplify right side
    1,355,237.76x = 1,390,276,625,858.15
  5. Step 5: Solve for x
    x = 1,390,276,625,858.15/1,355,237.76
  6. Step 6: Final answer
    x = 1,025,854.40

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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.