Home / 3,388,065.28-5,077,320-1,872,430.72

Finding the Fourth Proportional to 3,388,065.28, 5,077,320 and 1,872,430.72

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Solution

The fourth proportional to 3,388,065.28, 5,077,320 and 1,872,430.72 is: 2,806,005.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388,065.28 : 5,077,320 = 1,872,430.72 : x
  2. Step 2: Convert to fraction form
    3,388,065.28/5,077,320 = 1,872,430.72/x
  3. Step 3: Cross multiply
    3,388,065.28x = 5,077,320 × 1,872,430.72
  4. Step 4: Simplify right side
    3,388,065.28x = 9,506,929,943,270.40
  5. Step 5: Solve for x
    x = 9,506,929,943,270.40/3,388,065.28
  6. Step 6: Final answer
    x = 2,806,005.54

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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.