Home / 1,242,483.76-1,714,215.20-1,012,645.84

Finding the Fourth Proportional to 1,242,483.76, 1,714,215.20 and 1,012,645.84

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Solution

The fourth proportional to 1,242,483.76, 1,714,215.20 and 1,012,645.84 is: 1,397,115.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,483.76 : 1,714,215.20 = 1,012,645.84 : x
  2. Step 2: Convert to fraction form
    1,242,483.76/1,714,215.20 = 1,012,645.84/x
  3. Step 3: Cross multiply
    1,242,483.76x = 1,714,215.20 × 1,012,645.84
  4. Step 4: Simplify right side
    1,242,483.76x = 1,735,892,891,144.77
  5. Step 5: Solve for x
    x = 1,735,892,891,144.77/1,242,483.76
  6. Step 6: Final answer
    x = 1,397,115.16

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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.