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Finding the Fourth Proportional to 865,889.31, 1,299,178.67 and 333,267.33

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Solution

The fourth proportional to 865,889.31, 1,299,178.67 and 333,267.33 is: 500,033.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,889.31 : 1,299,178.67 = 333,267.33 : x
  2. Step 2: Convert to fraction form
    865,889.31/1,299,178.67 = 333,267.33/x
  3. Step 3: Cross multiply
    865,889.31x = 1,299,178.67 × 333,267.33
  4. Step 4: Simplify right side
    865,889.31x = 432,973,804,877.51
  5. Step 5: Solve for x
    x = 432,973,804,877.51/865,889.31
  6. Step 6: Final answer
    x = 500,033.66

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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.