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Finding the Fourth Proportional to 487,127, 672,208.01 and 269,322.99

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Solution

The fourth proportional to 487,127, 672,208.01 and 269,322.99 is: 371,650.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,127 : 672,208.01 = 269,322.99 : x
  2. Step 2: Convert to fraction form
    487,127/672,208.01 = 269,322.99/x
  3. Step 3: Cross multiply
    487,127x = 672,208.01 × 269,322.99
  4. Step 4: Simplify right side
    487,127x = 181,041,071,155.15
  5. Step 5: Solve for x
    x = 181,041,071,155.15/487,127
  6. Step 6: Final answer
    x = 371,650.66

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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.