Home / 692,139.87-1,038,371.25-236,734.63

Finding the Fourth Proportional to 692,139.87, 1,038,371.25 and 236,734.63

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Solution

The fourth proportional to 692,139.87, 1,038,371.25 and 236,734.63 is: 355,157.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,139.87 : 1,038,371.25 = 236,734.63 : x
  2. Step 2: Convert to fraction form
    692,139.87/1,038,371.25 = 236,734.63/x
  3. Step 3: Cross multiply
    692,139.87x = 1,038,371.25 × 236,734.63
  4. Step 4: Simplify right side
    692,139.87x = 245,818,428,479.53
  5. Step 5: Solve for x
    x = 245,818,428,479.53/692,139.87
  6. Step 6: Final answer
    x = 355,157.16

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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.