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Finding the Fourth Proportional to 487,021.78, 730,794.30 and 237,703.78

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Solution

The fourth proportional to 487,021.78, 730,794.30 and 237,703.78 is: 356,683.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,021.78 : 730,794.30 = 237,703.78 : x
  2. Step 2: Convert to fraction form
    487,021.78/730,794.30 = 237,703.78/x
  3. Step 3: Cross multiply
    487,021.78x = 730,794.30 × 237,703.78
  4. Step 4: Simplify right side
    487,021.78x = 173,712,567,512.45
  5. Step 5: Solve for x
    x = 173,712,567,512.45/487,021.78
  6. Step 6: Final answer
    x = 356,683.37

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1.5x scale

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.