Home / 638,764.79-958,347.03-189,488.00

Finding the Fourth Proportional to 638,764.79, 958,347.03 and 189,488.00

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Solution

The fourth proportional to 638,764.79, 958,347.03 and 189,488.00 is: 284,291.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,764.79 : 958,347.03 = 189,488.00 : x
  2. Step 2: Convert to fraction form
    638,764.79/958,347.03 = 189,488.00/x
  3. Step 3: Cross multiply
    638,764.79x = 958,347.03 × 189,488.00
  4. Step 4: Simplify right side
    638,764.79x = 181,595,265,127.09
  5. Step 5: Solve for x
    x = 181,595,265,127.09/638,764.79
  6. Step 6: Final answer
    x = 284,291.29

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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.