Home / 1,216,752.20-1,679,074.02-665,449.07

Finding the Fourth Proportional to 1,216,752.20, 1,679,074.02 and 665,449.07

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Solution

The fourth proportional to 1,216,752.20, 1,679,074.02 and 665,449.07 is: 918,295.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,752.20 : 1,679,074.02 = 665,449.07 : x
  2. Step 2: Convert to fraction form
    1,216,752.20/1,679,074.02 = 665,449.07/x
  3. Step 3: Cross multiply
    1,216,752.20x = 1,679,074.02 × 665,449.07
  4. Step 4: Simplify right side
    1,216,752.20x = 1,117,338,236,674.79
  5. Step 5: Solve for x
    x = 1,117,338,236,674.79/1,216,752.20
  6. Step 6: Final answer
    x = 918,295.64

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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.