Home / 821,965.60-1,232,026.80-348,570.40

Finding the Fourth Proportional to 821,965.60, 1,232,026.80 and 348,570.40

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Solution

The fourth proportional to 821,965.60, 1,232,026.80 and 348,570.40 is: 522,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,965.60 : 1,232,026.80 = 348,570.40 : x
  2. Step 2: Convert to fraction form
    821,965.60/1,232,026.80 = 348,570.40/x
  3. Step 3: Cross multiply
    821,965.60x = 1,232,026.80 × 348,570.40
  4. Step 4: Simplify right side
    821,965.60x = 429,448,074,486.72
  5. Step 5: Solve for x
    x = 429,448,074,486.72/821,965.60
  6. Step 6: Final answer
    x = 522,464.78

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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.