Home / 2,072,319.86-3,109,185.61-1,264,321.89

Finding the Fourth Proportional to 2,072,319.86, 3,109,185.61 and 1,264,321.89

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Solution

The fourth proportional to 2,072,319.86, 3,109,185.61 and 1,264,321.89 is: 1,896,913.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072,319.86 : 3,109,185.61 = 1,264,321.89 : x
  2. Step 2: Convert to fraction form
    2,072,319.86/3,109,185.61 = 1,264,321.89/x
  3. Step 3: Cross multiply
    2,072,319.86x = 3,109,185.61 × 1,264,321.89
  4. Step 4: Simplify right side
    2,072,319.86x = 3,931,011,423,635.20
  5. Step 5: Solve for x
    x = 3,931,011,423,635.20/2,072,319.86
  6. Step 6: Final answer
    x = 1,896,913.45

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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.