Home / 1,416,715.76-1,955,010.72-772,122.20

Finding the Fourth Proportional to 1,416,715.76, 1,955,010.72 and 772,122.20

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Solution

The fourth proportional to 1,416,715.76, 1,955,010.72 and 772,122.20 is: 1,065,497.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416,715.76 : 1,955,010.72 = 772,122.20 : x
  2. Step 2: Convert to fraction form
    1,416,715.76/1,955,010.72 = 772,122.20/x
  3. Step 3: Cross multiply
    1,416,715.76x = 1,955,010.72 × 772,122.20
  4. Step 4: Simplify right side
    1,416,715.76x = 1,509,507,178,149.98
  5. Step 5: Solve for x
    x = 1,509,507,178,149.98/1,416,715.76
  6. Step 6: Final answer
    x = 1,065,497.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.