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Finding the Fourth Proportional to 626,603.40, 864,717.03 and 340,123.41

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Solution

The fourth proportional to 626,603.40, 864,717.03 and 340,123.41 is: 469,372.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,603.40 : 864,717.03 = 340,123.41 : x
  2. Step 2: Convert to fraction form
    626,603.40/864,717.03 = 340,123.41/x
  3. Step 3: Cross multiply
    626,603.40x = 864,717.03 × 340,123.41
  4. Step 4: Simplify right side
    626,603.40x = 294,110,504,928.67
  5. Step 5: Solve for x
    x = 294,110,504,928.67/626,603.40
  6. Step 6: Final answer
    x = 469,372.66

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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.