Home / 1,187,955.20-1,782,340.80-346,630.40

Finding the Fourth Proportional to 1,187,955.20, 1,782,340.80 and 346,630.40

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Solution

The fourth proportional to 1,187,955.20, 1,782,340.80 and 346,630.40 is: 520,064.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,955.20 : 1,782,340.80 = 346,630.40 : x
  2. Step 2: Convert to fraction form
    1,187,955.20/1,782,340.80 = 346,630.40/x
  3. Step 3: Cross multiply
    1,187,955.20x = 1,782,340.80 × 346,630.40
  4. Step 4: Simplify right side
    1,187,955.20x = 617,813,504,440.32
  5. Step 5: Solve for x
    x = 617,813,504,440.32/1,187,955.20
  6. Step 6: Final answer
    x = 520,064.65

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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.