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Finding the Fourth Proportional to 540,090.40, 810,718.80 and 303,894.40

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Solution

The fourth proportional to 540,090.40, 810,718.80 and 303,894.40 is: 456,169.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,090.40 : 810,718.80 = 303,894.40 : x
  2. Step 2: Convert to fraction form
    540,090.40/810,718.80 = 303,894.40/x
  3. Step 3: Cross multiply
    540,090.40x = 810,718.80 × 303,894.40
  4. Step 4: Simplify right side
    540,090.40x = 246,372,903,294.72
  5. Step 5: Solve for x
    x = 246,372,903,294.72/540,090.40
  6. Step 6: Final answer
    x = 456,169.75

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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.