Home / 2,208,002.80-3,312,004.20-691,812.40

Finding the Fourth Proportional to 2,208,002.80, 3,312,004.20 and 691,812.40

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Solution

The fourth proportional to 2,208,002.80, 3,312,004.20 and 691,812.40 is: 1,037,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208,002.80 : 3,312,004.20 = 691,812.40 : x
  2. Step 2: Convert to fraction form
    2,208,002.80/3,312,004.20 = 691,812.40/x
  3. Step 3: Cross multiply
    2,208,002.80x = 3,312,004.20 × 691,812.40
  4. Step 4: Simplify right side
    2,208,002.80x = 2,291,285,574,412.08
  5. Step 5: Solve for x
    x = 2,291,285,574,412.08/2,208,002.80
  6. Step 6: Final answer
    x = 1,037,718.60

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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.