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Finding the Fourth Proportional to 632,620.20, 948,931.20 and 258,643.20

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Solution

The fourth proportional to 632,620.20, 948,931.20 and 258,643.20 is: 387,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,620.20 : 948,931.20 = 258,643.20 : x
  2. Step 2: Convert to fraction form
    632,620.20/948,931.20 = 258,643.20/x
  3. Step 3: Cross multiply
    632,620.20x = 948,931.20 × 258,643.20
  4. Step 4: Simplify right side
    632,620.20x = 245,434,602,147.84
  5. Step 5: Solve for x
    x = 245,434,602,147.84/632,620.20
  6. Step 6: Final answer
    x = 387,965.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.