Home / 1,281,650.40-1,921,344.20-483,492.45

Finding the Fourth Proportional to 1,281,650.40, 1,921,344.20 and 483,492.45

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Solution

The fourth proportional to 1,281,650.40, 1,921,344.20 and 483,492.45 is: 724,811.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,650.40 : 1,921,344.20 = 483,492.45 : x
  2. Step 2: Convert to fraction form
    1,281,650.40/1,921,344.20 = 483,492.45/x
  3. Step 3: Cross multiply
    1,281,650.40x = 1,921,344.20 × 483,492.45
  4. Step 4: Simplify right side
    1,281,650.40x = 928,955,412,133.83
  5. Step 5: Solve for x
    x = 928,955,412,133.83/1,281,650.40
  6. Step 6: Final answer
    x = 724,811.86

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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.