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Finding the Fourth Proportional to 665,024.40, 997,536.60 and 265,726.80

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Solution

The fourth proportional to 665,024.40, 997,536.60 and 265,726.80 is: 398,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,024.40 : 997,536.60 = 265,726.80 : x
  2. Step 2: Convert to fraction form
    665,024.40/997,536.60 = 265,726.80/x
  3. Step 3: Cross multiply
    665,024.40x = 997,536.60 × 265,726.80
  4. Step 4: Simplify right side
    665,024.40x = 265,072,208,600.88
  5. Step 5: Solve for x
    x = 265,072,208,600.88/665,024.40
  6. Step 6: Final answer
    x = 398,590.20

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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.