Home / 821,955.60-1,232,155.80-485,254.80

Finding the Fourth Proportional to 821,955.60, 1,232,155.80 and 485,254.80

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Solution

The fourth proportional to 821,955.60, 1,232,155.80 and 485,254.80 is: 727,423.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,955.60 : 1,232,155.80 = 485,254.80 : x
  2. Step 2: Convert to fraction form
    821,955.60/1,232,155.80 = 485,254.80/x
  3. Step 3: Cross multiply
    821,955.60x = 1,232,155.80 × 485,254.80
  4. Step 4: Simplify right side
    821,955.60x = 597,909,516,297.84
  5. Step 5: Solve for x
    x = 597,909,516,297.84/821,955.60
  6. Step 6: Final answer
    x = 727,423.13

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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.