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Finding the Fourth Proportional to 501,726.52, 692,260.32 and 283,940.20

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Solution

The fourth proportional to 501,726.52, 692,260.32 and 283,940.20 is: 391,768.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,726.52 : 692,260.32 = 283,940.20 : x
  2. Step 2: Convert to fraction form
    501,726.52/692,260.32 = 283,940.20/x
  3. Step 3: Cross multiply
    501,726.52x = 692,260.32 × 283,940.20
  4. Step 4: Simplify right side
    501,726.52x = 196,560,533,712.86
  5. Step 5: Solve for x
    x = 196,560,533,712.86/501,726.52
  6. Step 6: Final answer
    x = 391,768.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.