Home / 1,248,929.96-1,723,565.06-765,401.67

Finding the Fourth Proportional to 1,248,929.96, 1,723,565.06 and 765,401.67

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Solution

The fourth proportional to 1,248,929.96, 1,723,565.06 and 765,401.67 is: 1,056,279.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,929.96 : 1,723,565.06 = 765,401.67 : x
  2. Step 2: Convert to fraction form
    1,248,929.96/1,723,565.06 = 765,401.67/x
  3. Step 3: Cross multiply
    1,248,929.96x = 1,723,565.06 × 765,401.67
  4. Step 4: Simplify right side
    1,248,929.96x = 1,319,219,571,450.64
  5. Step 5: Solve for x
    x = 1,319,219,571,450.64/1,248,929.96
  6. Step 6: Final answer
    x = 1,056,279.87

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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.