Home / 828,808.96-1,243,214.08-355,187.20

Finding the Fourth Proportional to 828,808.96, 1,243,214.08 and 355,187.20

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Solution

The fourth proportional to 828,808.96, 1,243,214.08 and 355,187.20 is: 532,781.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,808.96 : 1,243,214.08 = 355,187.20 : x
  2. Step 2: Convert to fraction form
    828,808.96/1,243,214.08 = 355,187.20/x
  3. Step 3: Cross multiply
    828,808.96x = 1,243,214.08 × 355,187.20
  4. Step 4: Simplify right side
    828,808.96x = 441,573,728,075.78
  5. Step 5: Solve for x
    x = 441,573,728,075.78/828,808.96
  6. Step 6: Final answer
    x = 532,781.07

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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.