Home / 1,687,612.58-2,328,911.47-913,243.34

Finding the Fourth Proportional to 1,687,612.58, 2,328,911.47 and 913,243.34

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Solution

The fourth proportional to 1,687,612.58, 2,328,911.47 and 913,243.34 is: 1,260,279.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,612.58 : 2,328,911.47 = 913,243.34 : x
  2. Step 2: Convert to fraction form
    1,687,612.58/2,328,911.47 = 913,243.34/x
  3. Step 3: Cross multiply
    1,687,612.58x = 2,328,911.47 × 913,243.34
  4. Step 4: Simplify right side
    1,687,612.58x = 2,126,862,875,499.44
  5. Step 5: Solve for x
    x = 2,126,862,875,499.44/1,687,612.58
  6. Step 6: Final answer
    x = 1,260,279.11

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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.