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Finding the Fourth Proportional to 651,242.40, 977,900.40 and 441,808.80

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Solution

The fourth proportional to 651,242.40, 977,900.40 and 441,808.80 is: 663,416.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,242.40 : 977,900.40 = 441,808.80 : x
  2. Step 2: Convert to fraction form
    651,242.40/977,900.40 = 441,808.80/x
  3. Step 3: Cross multiply
    651,242.40x = 977,900.40 × 441,808.80
  4. Step 4: Simplify right side
    651,242.40x = 432,045,002,243.52
  5. Step 5: Solve for x
    x = 432,045,002,243.52/651,242.40
  6. Step 6: Final answer
    x = 663,416.57

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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.