Home / 1,347,046.32-1,858,920.12-743,430

Finding the Fourth Proportional to 1,347,046.32, 1,858,920.12 and 743,430

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Solution

The fourth proportional to 1,347,046.32, 1,858,920.12 and 743,430 is: 1,025,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,046.32 : 1,858,920.12 = 743,430 : x
  2. Step 2: Convert to fraction form
    1,347,046.32/1,858,920.12 = 743,430/x
  3. Step 3: Cross multiply
    1,347,046.32x = 1,858,920.12 × 743,430
  4. Step 4: Simplify right side
    1,347,046.32x = 1,381,976,984,811.60
  5. Step 5: Solve for x
    x = 1,381,976,984,811.60/1,347,046.32
  6. Step 6: Final answer
    x = 1,025,931.30

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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.