Home / 1,266,065.86-1,898,489.67-424,028.74

Finding the Fourth Proportional to 1,266,065.86, 1,898,489.67 and 424,028.74

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Solution

The fourth proportional to 1,266,065.86, 1,898,489.67 and 424,028.74 is: 635,839.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,065.86 : 1,898,489.67 = 424,028.74 : x
  2. Step 2: Convert to fraction form
    1,266,065.86/1,898,489.67 = 424,028.74/x
  3. Step 3: Cross multiply
    1,266,065.86x = 1,898,489.67 × 424,028.74
  4. Step 4: Simplify right side
    1,266,065.86x = 805,014,182,673.12
  5. Step 5: Solve for x
    x = 805,014,182,673.12/1,266,065.86
  6. Step 6: Final answer
    x = 635,839.10

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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.