Home / 1,020,404.70-1,530,607.05-910,179.90

Finding the Fourth Proportional to 1,020,404.70, 1,530,607.05 and 910,179.90

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Solution

The fourth proportional to 1,020,404.70, 1,530,607.05 and 910,179.90 is: 1,365,269.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,404.70 : 1,530,607.05 = 910,179.90 : x
  2. Step 2: Convert to fraction form
    1,020,404.70/1,530,607.05 = 910,179.90/x
  3. Step 3: Cross multiply
    1,020,404.70x = 1,530,607.05 × 910,179.90
  4. Step 4: Simplify right side
    1,020,404.70x = 1,393,127,771,708.30
  5. Step 5: Solve for x
    x = 1,393,127,771,708.30/1,020,404.70
  6. Step 6: Final answer
    x = 1,365,269.85

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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.