Home / 727,476.42-1,003,944.51-400,802.70

Finding the Fourth Proportional to 727,476.42, 1,003,944.51 and 400,802.70

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Solution

The fourth proportional to 727,476.42, 1,003,944.51 and 400,802.70 is: 553,122.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,476.42 : 1,003,944.51 = 400,802.70 : x
  2. Step 2: Convert to fraction form
    727,476.42/1,003,944.51 = 400,802.70/x
  3. Step 3: Cross multiply
    727,476.42x = 1,003,944.51 × 400,802.70
  4. Step 4: Simplify right side
    727,476.42x = 402,383,670,258.18
  5. Step 5: Solve for x
    x = 402,383,670,258.18/727,476.42
  6. Step 6: Final answer
    x = 553,122.63

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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.