Home / 520,043.08-779,888.94-145,977.16

Finding the Fourth Proportional to 520,043.08, 779,888.94 and 145,977.16

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Solution

The fourth proportional to 520,043.08, 779,888.94 and 145,977.16 is: 218,916.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,043.08 : 779,888.94 = 145,977.16 : x
  2. Step 2: Convert to fraction form
    520,043.08/779,888.94 = 145,977.16/x
  3. Step 3: Cross multiply
    520,043.08x = 779,888.94 × 145,977.16
  4. Step 4: Simplify right side
    520,043.08x = 113,845,972,576.61
  5. Step 5: Solve for x
    x = 113,845,972,576.61/520,043.08
  6. Step 6: Final answer
    x = 218,916.43

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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.