Home / 692,364.71-1,038,443.19-218,988.56

Finding the Fourth Proportional to 692,364.71, 1,038,443.19 and 218,988.56

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Solution

The fourth proportional to 692,364.71, 1,038,443.19 and 218,988.56 is: 328,449.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,364.71 : 1,038,443.19 = 218,988.56 : x
  2. Step 2: Convert to fraction form
    692,364.71/1,038,443.19 = 218,988.56/x
  3. Step 3: Cross multiply
    692,364.71x = 1,038,443.19 × 218,988.56
  4. Step 4: Simplify right side
    692,364.71x = 227,407,180,594.81
  5. Step 5: Solve for x
    x = 227,407,180,594.81/692,364.71
  6. Step 6: Final answer
    x = 328,449.99

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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.