Home / 970,110.56-1,338,574.92-540,380

Finding the Fourth Proportional to 970,110.56, 1,338,574.92 and 540,380

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Solution

The fourth proportional to 970,110.56, 1,338,574.92 and 540,380 is: 745,625.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,110.56 : 1,338,574.92 = 540,380 : x
  2. Step 2: Convert to fraction form
    970,110.56/1,338,574.92 = 540,380/x
  3. Step 3: Cross multiply
    970,110.56x = 1,338,574.92 × 540,380
  4. Step 4: Simplify right side
    970,110.56x = 723,339,115,269.60
  5. Step 5: Solve for x
    x = 723,339,115,269.60/970,110.56
  6. Step 6: Final answer
    x = 745,625.44

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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.