Home / 1,220,518.20-1,829,027.70-898,154.40

Finding the Fourth Proportional to 1,220,518.20, 1,829,027.70 and 898,154.40

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Solution

The fourth proportional to 1,220,518.20, 1,829,027.70 and 898,154.40 is: 1,345,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,518.20 : 1,829,027.70 = 898,154.40 : x
  2. Step 2: Convert to fraction form
    1,220,518.20/1,829,027.70 = 898,154.40/x
  3. Step 3: Cross multiply
    1,220,518.20x = 1,829,027.70 × 898,154.40
  4. Step 4: Simplify right side
    1,220,518.20x = 1,642,749,276,476.88
  5. Step 5: Solve for x
    x = 1,642,749,276,476.88/1,220,518.20
  6. Step 6: Final answer
    x = 1,345,944.11

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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.