Home / 1,315,400.80-1,972,955.40-368,867.20

Finding the Fourth Proportional to 1,315,400.80, 1,972,955.40 and 368,867.20

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Solution

The fourth proportional to 1,315,400.80, 1,972,955.40 and 368,867.20 is: 553,259.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,400.80 : 1,972,955.40 = 368,867.20 : x
  2. Step 2: Convert to fraction form
    1,315,400.80/1,972,955.40 = 368,867.20/x
  3. Step 3: Cross multiply
    1,315,400.80x = 1,972,955.40 × 368,867.20
  4. Step 4: Simplify right side
    1,315,400.80x = 727,758,534,122.88
  5. Step 5: Solve for x
    x = 727,758,534,122.88/1,315,400.80
  6. Step 6: Final answer
    x = 553,259.91

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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.