Home / 1,231,254.60-1,699,159.88-772,388.48

Finding the Fourth Proportional to 1,231,254.60, 1,699,159.88 and 772,388.48

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Solution

The fourth proportional to 1,231,254.60, 1,699,159.88 and 772,388.48 is: 1,065,914.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,254.60 : 1,699,159.88 = 772,388.48 : x
  2. Step 2: Convert to fraction form
    1,231,254.60/1,699,159.88 = 772,388.48/x
  3. Step 3: Cross multiply
    1,231,254.60x = 1,699,159.88 × 772,388.48
  4. Step 4: Simplify right side
    1,231,254.60x = 1,312,411,516,990.18
  5. Step 5: Solve for x
    x = 1,312,411,516,990.18/1,231,254.60
  6. Step 6: Final answer
    x = 1,065,914.00

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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.