Home / 970,118.56-1,338,585.96-540,388

Finding the Fourth Proportional to 970,118.56, 1,338,585.96 and 540,388

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Solution

The fourth proportional to 970,118.56, 1,338,585.96 and 540,388 is: 745,636.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,118.56 : 1,338,585.96 = 540,388 : x
  2. Step 2: Convert to fraction form
    970,118.56/1,338,585.96 = 540,388/x
  3. Step 3: Cross multiply
    970,118.56x = 1,338,585.96 × 540,388
  4. Step 4: Simplify right side
    970,118.56x = 723,355,789,752.48
  5. Step 5: Solve for x
    x = 723,355,789,752.48/970,118.56
  6. Step 6: Final answer
    x = 745,636.48

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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.