Home / 688,232.02-949,863.66-495,278.50

Finding the Fourth Proportional to 688,232.02, 949,863.66 and 495,278.50

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Solution

The fourth proportional to 688,232.02, 949,863.66 and 495,278.50 is: 683,558.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,232.02 : 949,863.66 = 495,278.50 : x
  2. Step 2: Convert to fraction form
    688,232.02/949,863.66 = 495,278.50/x
  3. Step 3: Cross multiply
    688,232.02x = 949,863.66 × 495,278.50
  4. Step 4: Simplify right side
    688,232.02x = 470,447,048,729.31
  5. Step 5: Solve for x
    x = 470,447,048,729.31/688,232.02
  6. Step 6: Final answer
    x = 683,558.79

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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.