Home / 1,330,019.30-1,995,309.36-431,391.14

Finding the Fourth Proportional to 1,330,019.30, 1,995,309.36 and 431,391.14

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Solution

The fourth proportional to 1,330,019.30, 1,995,309.36 and 431,391.14 is: 647,177.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,019.30 : 1,995,309.36 = 431,391.14 : x
  2. Step 2: Convert to fraction form
    1,330,019.30/1,995,309.36 = 431,391.14/x
  3. Step 3: Cross multiply
    1,330,019.30x = 1,995,309.36 × 431,391.14
  4. Step 4: Simplify right side
    1,330,019.30x = 860,758,779,463.07
  5. Step 5: Solve for x
    x = 860,758,779,463.07/1,330,019.30
  6. Step 6: Final answer
    x = 647,177.66

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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.