Home / 702,938.70-1,054,861.65-387,621.90

Finding the Fourth Proportional to 702,938.70, 1,054,861.65 and 387,621.90

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Solution

The fourth proportional to 702,938.70, 1,054,861.65 and 387,621.90 is: 581,682.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,938.70 : 1,054,861.65 = 387,621.90 : x
  2. Step 2: Convert to fraction form
    702,938.70/1,054,861.65 = 387,621.90/x
  3. Step 3: Cross multiply
    702,938.70x = 1,054,861.65 × 387,621.90
  4. Step 4: Simplify right side
    702,938.70x = 408,887,477,010.14
  5. Step 5: Solve for x
    x = 408,887,477,010.14/702,938.70
  6. Step 6: Final answer
    x = 581,682.98

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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.