Home / 409,020.84-564,442.02-239,283.72

Finding the Fourth Proportional to 409,020.84, 564,442.02 and 239,283.72

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Solution

The fourth proportional to 409,020.84, 564,442.02 and 239,283.72 is: 330,207.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,020.84 : 564,442.02 = 239,283.72 : x
  2. Step 2: Convert to fraction form
    409,020.84/564,442.02 = 239,283.72/x
  3. Step 3: Cross multiply
    409,020.84x = 564,442.02 × 239,283.72
  4. Step 4: Simplify right side
    409,020.84x = 135,061,786,269.91
  5. Step 5: Solve for x
    x = 135,061,786,269.91/409,020.84
  6. Step 6: Final answer
    x = 330,207.59

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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.