Home / 402,495.85-603,739.47-102,974.05

Finding the Fourth Proportional to 402,495.85, 603,739.47 and 102,974.05

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Solution

The fourth proportional to 402,495.85, 603,739.47 and 102,974.05 is: 154,459.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,495.85 : 603,739.47 = 102,974.05 : x
  2. Step 2: Convert to fraction form
    402,495.85/603,739.47 = 102,974.05/x
  3. Step 3: Cross multiply
    402,495.85x = 603,739.47 × 102,974.05
  4. Step 4: Simplify right side
    402,495.85x = 62,169,499,511.58
  5. Step 5: Solve for x
    x = 62,169,499,511.58/402,495.85
  6. Step 6: Final answer
    x = 154,459.98

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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.