Home / 1,262,820.40-1,894,246.96-421,372.16

Finding the Fourth Proportional to 1,262,820.40, 1,894,246.96 and 421,372.16

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Solution

The fourth proportional to 1,262,820.40, 1,894,246.96 and 421,372.16 is: 632,063.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,820.40 : 1,894,246.96 = 421,372.16 : x
  2. Step 2: Convert to fraction form
    1,262,820.40/1,894,246.96 = 421,372.16/x
  3. Step 3: Cross multiply
    1,262,820.40x = 1,894,246.96 × 421,372.16
  4. Step 4: Simplify right side
    1,262,820.40x = 798,182,933,108.63
  5. Step 5: Solve for x
    x = 798,182,933,108.63/1,262,820.40
  6. Step 6: Final answer
    x = 632,063.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.