Home / 631,124.20-946,686.30-394,928.20

Finding the Fourth Proportional to 631,124.20, 946,686.30 and 394,928.20

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Solution

The fourth proportional to 631,124.20, 946,686.30 and 394,928.20 is: 592,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,124.20 : 946,686.30 = 394,928.20 : x
  2. Step 2: Convert to fraction form
    631,124.20/946,686.30 = 394,928.20/x
  3. Step 3: Cross multiply
    631,124.20x = 946,686.30 × 394,928.20
  4. Step 4: Simplify right side
    631,124.20x = 373,873,116,423.66
  5. Step 5: Solve for x
    x = 373,873,116,423.66/631,124.20
  6. Step 6: Final answer
    x = 592,392.30

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Half scale
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Double scale
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Similar ratio
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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.