Home / 1,231,252.60-1,699,157.12-772,386.48

Finding the Fourth Proportional to 1,231,252.60, 1,699,157.12 and 772,386.48

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Solution

The fourth proportional to 1,231,252.60, 1,699,157.12 and 772,386.48 is: 1,065,911.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,252.60 : 1,699,157.12 = 772,386.48 : x
  2. Step 2: Convert to fraction form
    1,231,252.60/1,699,157.12 = 772,386.48/x
  3. Step 3: Cross multiply
    1,231,252.60x = 1,699,157.12 × 772,386.48
  4. Step 4: Simplify right side
    1,231,252.60x = 1,312,405,986,883.74
  5. Step 5: Solve for x
    x = 1,312,405,986,883.74/1,231,252.60
  6. Step 6: Final answer
    x = 1,065,911.24

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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.