Home / 2,947,816.80-4,421,230.56-818,117.28

Finding the Fourth Proportional to 2,947,816.80, 4,421,230.56 and 818,117.28

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Solution

The fourth proportional to 2,947,816.80, 4,421,230.56 and 818,117.28 is: 1,227,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947,816.80 : 4,421,230.56 = 818,117.28 : x
  2. Step 2: Convert to fraction form
    2,947,816.80/4,421,230.56 = 818,117.28/x
  3. Step 3: Cross multiply
    2,947,816.80x = 4,421,230.56 × 818,117.28
  4. Step 4: Simplify right side
    2,947,816.80x = 3,617,085,120,000.08
  5. Step 5: Solve for x
    x = 3,617,085,120,000.08/2,947,816.80
  6. Step 6: Final answer
    x = 1,227,038.64

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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.