Home / 1,020,103.70-1,530,155.55-908,129.30

Finding the Fourth Proportional to 1,020,103.70, 1,530,155.55 and 908,129.30

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Solution

The fourth proportional to 1,020,103.70, 1,530,155.55 and 908,129.30 is: 1,362,193.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,103.70 : 1,530,155.55 = 908,129.30 : x
  2. Step 2: Convert to fraction form
    1,020,103.70/1,530,155.55 = 908,129.30/x
  3. Step 3: Cross multiply
    1,020,103.70x = 1,530,155.55 × 908,129.30
  4. Step 4: Simplify right side
    1,020,103.70x = 1,389,579,088,512.62
  5. Step 5: Solve for x
    x = 1,389,579,088,512.62/1,020,103.70
  6. Step 6: Final answer
    x = 1,362,193.95

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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.