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Finding the Fourth Proportional to 488,271.80, 730,982.10 and 348,303.80

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Solution

The fourth proportional to 488,271.80, 730,982.10 and 348,303.80 is: 521,438.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,271.80 : 730,982.10 = 348,303.80 : x
  2. Step 2: Convert to fraction form
    488,271.80/730,982.10 = 348,303.80/x
  3. Step 3: Cross multiply
    488,271.80x = 730,982.10 × 348,303.80
  4. Step 4: Simplify right side
    488,271.80x = 254,603,843,161.98
  5. Step 5: Solve for x
    x = 254,603,843,161.98/488,271.80
  6. Step 6: Final answer
    x = 521,438.76

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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.