Home / 1,020,118.20-1,530,177.30-908,143.80

Finding the Fourth Proportional to 1,020,118.20, 1,530,177.30 and 908,143.80

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Solution

The fourth proportional to 1,020,118.20, 1,530,177.30 and 908,143.80 is: 1,362,215.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,118.20 : 1,530,177.30 = 908,143.80 : x
  2. Step 2: Convert to fraction form
    1,020,118.20/1,530,177.30 = 908,143.80/x
  3. Step 3: Cross multiply
    1,020,118.20x = 1,530,177.30 × 908,143.80
  4. Step 4: Simplify right side
    1,020,118.20x = 1,389,621,027,895.74
  5. Step 5: Solve for x
    x = 1,389,621,027,895.74/1,020,118.20
  6. Step 6: Final answer
    x = 1,362,215.70

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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.