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Finding the Fourth Proportional to 524,430.49, 787,430.90 and 300,043.93

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Solution

The fourth proportional to 524,430.49, 787,430.90 and 300,043.93 is: 450,515.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,430.49 : 787,430.90 = 300,043.93 : x
  2. Step 2: Convert to fraction form
    524,430.49/787,430.90 = 300,043.93/x
  3. Step 3: Cross multiply
    524,430.49x = 787,430.90 × 300,043.93
  4. Step 4: Simplify right side
    524,430.49x = 236,263,861,839.44
  5. Step 5: Solve for x
    x = 236,263,861,839.44/524,430.49
  6. Step 6: Final answer
    x = 450,515.11

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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.