Home / 821,254.20-1,232,111.70-400,543.80

Finding the Fourth Proportional to 821,254.20, 1,232,111.70 and 400,543.80

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Solution

The fourth proportional to 821,254.20, 1,232,111.70 and 400,543.80 is: 600,928.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,254.20 : 1,232,111.70 = 400,543.80 : x
  2. Step 2: Convert to fraction form
    821,254.20/1,232,111.70 = 400,543.80/x
  3. Step 3: Cross multiply
    821,254.20x = 1,232,111.70 × 400,543.80
  4. Step 4: Simplify right side
    821,254.20x = 493,514,702,342.46
  5. Step 5: Solve for x
    x = 493,514,702,342.46/821,254.20
  6. Step 6: Final answer
    x = 600,928.07

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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.