Home / 558,423.73-837,635.64-390,272.41

Finding the Fourth Proportional to 558,423.73, 837,635.64 and 390,272.41

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Solution

The fourth proportional to 558,423.73, 837,635.64 and 390,272.41 is: 585,408.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,423.73 : 837,635.64 = 390,272.41 : x
  2. Step 2: Convert to fraction form
    558,423.73/837,635.64 = 390,272.41/x
  3. Step 3: Cross multiply
    558,423.73x = 837,635.64 × 390,272.41
  4. Step 4: Simplify right side
    558,423.73x = 326,906,079,924.69
  5. Step 5: Solve for x
    x = 326,906,079,924.69/558,423.73
  6. Step 6: Final answer
    x = 585,408.65

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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.