Home / 688,244.09-949,928.64-382,425.55

Finding the Fourth Proportional to 688,244.09, 949,928.64 and 382,425.55

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Solution

The fourth proportional to 688,244.09, 949,928.64 and 382,425.55 is: 527,831.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,244.09 : 949,928.64 = 382,425.55 : x
  2. Step 2: Convert to fraction form
    688,244.09/949,928.64 = 382,425.55/x
  3. Step 3: Cross multiply
    688,244.09x = 949,928.64 × 382,425.55
  4. Step 4: Simplify right side
    688,244.09x = 363,276,980,237.93
  5. Step 5: Solve for x
    x = 363,276,980,237.93/688,244.09
  6. Step 6: Final answer
    x = 527,831.61

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1.5x scale

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.