Home / 2,574,430.80-3,861,646.20-1,978,400.40

Finding the Fourth Proportional to 2,574,430.80, 3,861,646.20 and 1,978,400.40

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Solution

The fourth proportional to 2,574,430.80, 3,861,646.20 and 1,978,400.40 is: 2,967,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,574,430.80 : 3,861,646.20 = 1,978,400.40 : x
  2. Step 2: Convert to fraction form
    2,574,430.80/3,861,646.20 = 1,978,400.40/x
  3. Step 3: Cross multiply
    2,574,430.80x = 3,861,646.20 × 1,978,400.40
  4. Step 4: Simplify right side
    2,574,430.80x = 7,639,882,386,738.48
  5. Step 5: Solve for x
    x = 7,639,882,386,738.48/2,574,430.80
  6. Step 6: Final answer
    x = 2,967,600.60

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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.