Home / 558,420.70-837,631.11-390,269.44

Finding the Fourth Proportional to 558,420.70, 837,631.11 and 390,269.44

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Solution

The fourth proportional to 558,420.70, 837,631.11 and 390,269.44 is: 585,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,420.70 : 837,631.11 = 390,269.44 : x
  2. Step 2: Convert to fraction form
    558,420.70/837,631.11 = 390,269.44/x
  3. Step 3: Cross multiply
    558,420.70x = 837,631.11 × 390,269.44
  4. Step 4: Simplify right side
    558,420.70x = 326,901,824,226.28
  5. Step 5: Solve for x
    x = 326,901,824,226.28/558,420.70
  6. Step 6: Final answer
    x = 585,404.20

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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.