Home / 824,643.60-1,236,965.40-492,867.60

Finding the Fourth Proportional to 824,643.60, 1,236,965.40 and 492,867.60

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Solution

The fourth proportional to 824,643.60, 1,236,965.40 and 492,867.60 is: 739,301.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,643.60 : 1,236,965.40 = 492,867.60 : x
  2. Step 2: Convert to fraction form
    824,643.60/1,236,965.40 = 492,867.60/x
  3. Step 3: Cross multiply
    824,643.60x = 1,236,965.40 × 492,867.60
  4. Step 4: Simplify right side
    824,643.60x = 609,660,167,981.04
  5. Step 5: Solve for x
    x = 609,660,167,981.04/824,643.60
  6. Step 6: Final answer
    x = 739,301.40

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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.