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Finding the Fourth Proportional to 501,903.72, 692,632.12 and 272,462.78

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Solution

The fourth proportional to 501,903.72, 692,632.12 and 272,462.78 is: 376,001.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,903.72 : 692,632.12 = 272,462.78 : x
  2. Step 2: Convert to fraction form
    501,903.72/692,632.12 = 272,462.78/x
  3. Step 3: Cross multiply
    501,903.72x = 692,632.12 × 272,462.78
  4. Step 4: Simplify right side
    501,903.72x = 188,716,472,932.49
  5. Step 5: Solve for x
    x = 188,716,472,932.49/501,903.72
  6. Step 6: Final answer
    x = 376,001.34

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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.