Home / 692,084.01-1,038,279.71-212,378.32

Finding the Fourth Proportional to 692,084.01, 1,038,279.71 and 212,378.32

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Solution

The fourth proportional to 692,084.01, 1,038,279.71 and 212,378.32 is: 318,614.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,084.01 : 1,038,279.71 = 212,378.32 : x
  2. Step 2: Convert to fraction form
    692,084.01/1,038,279.71 = 212,378.32/x
  3. Step 3: Cross multiply
    692,084.01x = 1,038,279.71 × 212,378.32
  4. Step 4: Simplify right side
    692,084.01x = 220,508,100,499.89
  5. Step 5: Solve for x
    x = 220,508,100,499.89/692,084.01
  6. Step 6: Final answer
    x = 318,614.64

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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.