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Finding the Fourth Proportional to 483,338.40, 724,316.40 and 355,984.80

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Solution

The fourth proportional to 483,338.40, 724,316.40 and 355,984.80 is: 533,468.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,338.40 : 724,316.40 = 355,984.80 : x
  2. Step 2: Convert to fraction form
    483,338.40/724,316.40 = 355,984.80/x
  3. Step 3: Cross multiply
    483,338.40x = 724,316.40 × 355,984.80
  4. Step 4: Simplify right side
    483,338.40x = 257,845,628,790.72
  5. Step 5: Solve for x
    x = 257,845,628,790.72/483,338.40
  6. Step 6: Final answer
    x = 533,468.12

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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.