Home / 970,118.43-1,338,804.86-540,398.85

Finding the Fourth Proportional to 970,118.43, 1,338,804.86 and 540,398.85

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Solution

The fourth proportional to 970,118.43, 1,338,804.86 and 540,398.85 is: 745,773.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,118.43 : 1,338,804.86 = 540,398.85 : x
  2. Step 2: Convert to fraction form
    970,118.43/1,338,804.86 = 540,398.85/x
  3. Step 3: Cross multiply
    970,118.43x = 1,338,804.86 × 540,398.85
  4. Step 4: Simplify right side
    970,118.43x = 723,488,604,016.42
  5. Step 5: Solve for x
    x = 723,488,604,016.42/970,118.43
  6. Step 6: Final answer
    x = 745,773.49

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1.5x scale

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.