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Finding the Fourth Proportional to 654,216.48, 980,922.78 and 254,391.12

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Solution

The fourth proportional to 654,216.48, 980,922.78 and 254,391.12 is: 381,430.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,216.48 : 980,922.78 = 254,391.12 : x
  2. Step 2: Convert to fraction form
    654,216.48/980,922.78 = 254,391.12/x
  3. Step 3: Cross multiply
    654,216.48x = 980,922.78 × 254,391.12
  4. Step 4: Simplify right side
    654,216.48x = 249,538,044,637.71
  5. Step 5: Solve for x
    x = 249,538,044,637.71/654,216.48
  6. Step 6: Final answer
    x = 381,430.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.