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Finding the Fourth Proportional to 628,960.32, 867,952.80 and 342,483.84

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Solution

The fourth proportional to 628,960.32, 867,952.80 and 342,483.84 is: 472,620.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,960.32 : 867,952.80 = 342,483.84 : x
  2. Step 2: Convert to fraction form
    628,960.32/867,952.80 = 342,483.84/x
  3. Step 3: Cross multiply
    628,960.32x = 867,952.80 × 342,483.84
  4. Step 4: Simplify right side
    628,960.32x = 297,259,807,882.75
  5. Step 5: Solve for x
    x = 297,259,807,882.75/628,960.32
  6. Step 6: Final answer
    x = 472,620.92

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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.