Home / 587,566.49-811,089.81-396,838.22

Finding the Fourth Proportional to 587,566.49, 811,089.81 and 396,838.22

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Solution

The fourth proportional to 587,566.49, 811,089.81 and 396,838.22 is: 547,804.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,566.49 : 811,089.81 = 396,838.22 : x
  2. Step 2: Convert to fraction form
    587,566.49/811,089.81 = 396,838.22/x
  3. Step 3: Cross multiply
    587,566.49x = 811,089.81 × 396,838.22
  4. Step 4: Simplify right side
    587,566.49x = 321,871,432,405.09
  5. Step 5: Solve for x
    x = 321,871,432,405.09/587,566.49
  6. Step 6: Final answer
    x = 547,804.28

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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.