Home / 990,947.66-1,486,452.33-471,509.03

Finding the Fourth Proportional to 990,947.66, 1,486,452.33 and 471,509.03

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Solution

The fourth proportional to 990,947.66, 1,486,452.33 and 471,509.03 is: 707,278.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,947.66 : 1,486,452.33 = 471,509.03 : x
  2. Step 2: Convert to fraction form
    990,947.66/1,486,452.33 = 471,509.03/x
  3. Step 3: Cross multiply
    990,947.66x = 1,486,452.33 × 471,509.03
  4. Step 4: Simplify right side
    990,947.66x = 700,875,699,975.67
  5. Step 5: Solve for x
    x = 700,875,699,975.67/990,947.66
  6. Step 6: Final answer
    x = 707,278.23

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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.