Home / 688,062.42-949,527.09-386,258.58

Finding the Fourth Proportional to 688,062.42, 949,527.09 and 386,258.58

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Solution

The fourth proportional to 688,062.42, 949,527.09 and 386,258.58 is: 533,037.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,062.42 : 949,527.09 = 386,258.58 : x
  2. Step 2: Convert to fraction form
    688,062.42/949,527.09 = 386,258.58/x
  3. Step 3: Cross multiply
    688,062.42x = 949,527.09 × 386,258.58
  4. Step 4: Simplify right side
    688,062.42x = 366,762,985,454.93
  5. Step 5: Solve for x
    x = 366,762,985,454.93/688,062.42
  6. Step 6: Final answer
    x = 533,037.37

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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.