Home / 1,687,174.40-2,328,294.37-912,802.76

Finding the Fourth Proportional to 1,687,174.40, 2,328,294.37 and 912,802.76

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Solution

The fourth proportional to 1,687,174.40, 2,328,294.37 and 912,802.76 is: 1,259,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,174.40 : 2,328,294.37 = 912,802.76 : x
  2. Step 2: Convert to fraction form
    1,687,174.40/2,328,294.37 = 912,802.76/x
  3. Step 3: Cross multiply
    1,687,174.40x = 2,328,294.37 × 912,802.76
  4. Step 4: Simplify right side
    1,687,174.40x = 2,125,273,527,028.46
  5. Step 5: Solve for x
    x = 2,125,273,527,028.46/1,687,174.40
  6. Step 6: Final answer
    x = 1,259,664.40

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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.