Home / 1,248,929.57-1,723,564.55-765,401.29

Finding the Fourth Proportional to 1,248,929.57, 1,723,564.55 and 765,401.29

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Solution

The fourth proportional to 1,248,929.57, 1,723,564.55 and 765,401.29 is: 1,056,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,929.57 : 1,723,564.55 = 765,401.29 : x
  2. Step 2: Convert to fraction form
    1,248,929.57/1,723,564.55 = 765,401.29/x
  3. Step 3: Cross multiply
    1,248,929.57x = 1,723,564.55 × 765,401.29
  4. Step 4: Simplify right side
    1,248,929.57x = 1,319,218,521,832.35
  5. Step 5: Solve for x
    x = 1,319,218,521,832.35/1,248,929.57
  6. Step 6: Final answer
    x = 1,056,279.35

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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.