Home / 1,238,065.86-1,707,805.22-778,452.02

Finding the Fourth Proportional to 1,238,065.86, 1,707,805.22 and 778,452.02

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Solution

The fourth proportional to 1,238,065.86, 1,707,805.22 and 778,452.02 is: 1,073,807.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,065.86 : 1,707,805.22 = 778,452.02 : x
  2. Step 2: Convert to fraction form
    1,238,065.86/1,707,805.22 = 778,452.02/x
  3. Step 3: Cross multiply
    1,238,065.86x = 1,707,805.22 × 778,452.02
  4. Step 4: Simplify right side
    1,238,065.86x = 1,329,444,417,248.53
  5. Step 5: Solve for x
    x = 1,329,444,417,248.53/1,238,065.86
  6. Step 6: Final answer
    x = 1,073,807.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.