Home / 628,628.42-867,894.82-432,729.38

Finding the Fourth Proportional to 628,628.42, 867,894.82 and 432,729.38

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Solution

The fourth proportional to 628,628.42, 867,894.82 and 432,729.38 is: 597,433.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,628.42 : 867,894.82 = 432,729.38 : x
  2. Step 2: Convert to fraction form
    628,628.42/867,894.82 = 432,729.38/x
  3. Step 3: Cross multiply
    628,628.42x = 867,894.82 × 432,729.38
  4. Step 4: Simplify right side
    628,628.42x = 375,563,587,363.81
  5. Step 5: Solve for x
    x = 375,563,587,363.81/628,628.42
  6. Step 6: Final answer
    x = 597,433.36

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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.