Home / 818,820.40-1,226,848.20-538,193.20

Finding the Fourth Proportional to 818,820.40, 1,226,848.20 and 538,193.20

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Solution

The fourth proportional to 818,820.40, 1,226,848.20 and 538,193.20 is: 806,381.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,820.40 : 1,226,848.20 = 538,193.20 : x
  2. Step 2: Convert to fraction form
    818,820.40/1,226,848.20 = 538,193.20/x
  3. Step 3: Cross multiply
    818,820.40x = 1,226,848.20 × 538,193.20
  4. Step 4: Simplify right side
    818,820.40x = 660,281,358,672.24
  5. Step 5: Solve for x
    x = 660,281,358,672.24/818,820.40
  6. Step 6: Final answer
    x = 806,381.18

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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.