Home / 1,277,680.40-1,915,208.40-744,927.20

Finding the Fourth Proportional to 1,277,680.40, 1,915,208.40 and 744,927.20

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Solution

The fourth proportional to 1,277,680.40, 1,915,208.40 and 744,927.20 is: 1,116,625.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,680.40 : 1,915,208.40 = 744,927.20 : x
  2. Step 2: Convert to fraction form
    1,277,680.40/1,915,208.40 = 744,927.20/x
  3. Step 3: Cross multiply
    1,277,680.40x = 1,915,208.40 × 744,927.20
  4. Step 4: Simplify right side
    1,277,680.40x = 1,426,690,830,828.48
  5. Step 5: Solve for x
    x = 1,426,690,830,828.48/1,277,680.40
  6. Step 6: Final answer
    x = 1,116,625.75

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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.