Home / 1,020,209.30-1,528,564.35-486,581.30

Finding the Fourth Proportional to 1,020,209.30, 1,528,564.35 and 486,581.30

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Solution

The fourth proportional to 1,020,209.30, 1,528,564.35 and 486,581.30 is: 729,037.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,209.30 : 1,528,564.35 = 486,581.30 : x
  2. Step 2: Convert to fraction form
    1,020,209.30/1,528,564.35 = 486,581.30/x
  3. Step 3: Cross multiply
    1,020,209.30x = 1,528,564.35 × 486,581.30
  4. Step 4: Simplify right side
    1,020,209.30x = 743,770,828,556.66
  5. Step 5: Solve for x
    x = 743,770,828,556.66/1,020,209.30
  6. Step 6: Final answer
    x = 729,037.49

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Double scale
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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.