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Finding the Fourth Proportional to 683,258.40, 943,290 and 454,126.32

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Solution

The fourth proportional to 683,258.40, 943,290 and 454,126.32 is: 626,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,258.40 : 943,290 = 454,126.32 : x
  2. Step 2: Convert to fraction form
    683,258.40/943,290 = 454,126.32/x
  3. Step 3: Cross multiply
    683,258.40x = 943,290 × 454,126.32
  4. Step 4: Simplify right side
    683,258.40x = 428,372,816,392.80
  5. Step 5: Solve for x
    x = 428,372,816,392.80/683,258.40
  6. Step 6: Final answer
    x = 626,955.80

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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.