Home / 821,955.60-1,232,011.80-348,560.40

Finding the Fourth Proportional to 821,955.60, 1,232,011.80 and 348,560.40

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Solution

The fourth proportional to 821,955.60, 1,232,011.80 and 348,560.40 is: 522,449.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,955.60 : 1,232,011.80 = 348,560.40 : x
  2. Step 2: Convert to fraction form
    821,955.60/1,232,011.80 = 348,560.40/x
  3. Step 3: Cross multiply
    821,955.60x = 1,232,011.80 × 348,560.40
  4. Step 4: Simplify right side
    821,955.60x = 429,430,525,812.72
  5. Step 5: Solve for x
    x = 429,430,525,812.72/821,955.60
  6. Step 6: Final answer
    x = 522,449.78

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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.