Home / 900,030.38-1,349,651.91-426,851.06

Finding the Fourth Proportional to 900,030.38, 1,349,651.91 and 426,851.06

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Solution

The fourth proportional to 900,030.38, 1,349,651.91 and 426,851.06 is: 640,089.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,030.38 : 1,349,651.91 = 426,851.06 : x
  2. Step 2: Convert to fraction form
    900,030.38/1,349,651.91 = 426,851.06/x
  3. Step 3: Cross multiply
    900,030.38x = 1,349,651.91 × 426,851.06
  4. Step 4: Simplify right side
    900,030.38x = 576,100,348,414.53
  5. Step 5: Solve for x
    x = 576,100,348,414.53/900,030.38
  6. Step 6: Final answer
    x = 640,089.89

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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.