Home / 691,790.60-954,586.12-385,795.28

Finding the Fourth Proportional to 691,790.60, 954,586.12 and 385,795.28

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Solution

The fourth proportional to 691,790.60, 954,586.12 and 385,795.28 is: 532,350.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,790.60 : 954,586.12 = 385,795.28 : x
  2. Step 2: Convert to fraction form
    691,790.60/954,586.12 = 385,795.28/x
  3. Step 3: Cross multiply
    691,790.60x = 954,586.12 × 385,795.28
  4. Step 4: Simplify right side
    691,790.60x = 368,274,819,449.51
  5. Step 5: Solve for x
    x = 368,274,819,449.51/691,790.60
  6. Step 6: Final answer
    x = 532,350.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.