Home / 970,134.72-1,338,827.31-540,415.14

Finding the Fourth Proportional to 970,134.72, 1,338,827.31 and 540,415.14

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Solution

The fourth proportional to 970,134.72, 1,338,827.31 and 540,415.14 is: 745,795.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,134.72 : 1,338,827.31 = 540,415.14 : x
  2. Step 2: Convert to fraction form
    970,134.72/1,338,827.31 = 540,415.14/x
  3. Step 3: Cross multiply
    970,134.72x = 1,338,827.31 × 540,415.14
  4. Step 4: Simplify right side
    970,134.72x = 723,522,548,169.47
  5. Step 5: Solve for x
    x = 723,522,548,169.47/970,134.72
  6. Step 6: Final answer
    x = 745,795.95

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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.