Home / 970,262.72-1,338,928.80-540,520.64

Finding the Fourth Proportional to 970,262.72, 1,338,928.80 and 540,520.64

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Solution

The fourth proportional to 970,262.72, 1,338,928.80 and 540,520.64 is: 745,899.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,262.72 : 1,338,928.80 = 540,520.64 : x
  2. Step 2: Convert to fraction form
    970,262.72/1,338,928.80 = 540,520.64/x
  3. Step 3: Cross multiply
    970,262.72x = 1,338,928.80 × 540,520.64
  4. Step 4: Simplify right side
    970,262.72x = 723,718,651,890.43
  5. Step 5: Solve for x
    x = 723,718,651,890.43/970,262.72
  6. Step 6: Final answer
    x = 745,899.68

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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.