Home / 1,201,278.30-1,801,386.09-359,673.18

Finding the Fourth Proportional to 1,201,278.30, 1,801,386.09 and 359,673.18

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Solution

The fourth proportional to 1,201,278.30, 1,801,386.09 and 359,673.18 is: 539,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,278.30 : 1,801,386.09 = 359,673.18 : x
  2. Step 2: Convert to fraction form
    1,201,278.30/1,801,386.09 = 359,673.18/x
  3. Step 3: Cross multiply
    1,201,278.30x = 1,801,386.09 × 359,673.18
  4. Step 4: Simplify right side
    1,201,278.30x = 647,910,263,398.07
  5. Step 5: Solve for x
    x = 647,910,263,398.07/1,201,278.30
  6. Step 6: Final answer
    x = 539,350.68

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1.5x scale

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.