Home / 828,980.80-1,244,127.30-323,783.80

Finding the Fourth Proportional to 828,980.80, 1,244,127.30 and 323,783.80

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Solution

The fourth proportional to 828,980.80, 1,244,127.30 and 323,783.80 is: 485,931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,980.80 : 1,244,127.30 = 323,783.80 : x
  2. Step 2: Convert to fraction form
    828,980.80/1,244,127.30 = 323,783.80/x
  3. Step 3: Cross multiply
    828,980.80x = 1,244,127.30 × 323,783.80
  4. Step 4: Simplify right side
    828,980.80x = 402,828,264,877.74
  5. Step 5: Solve for x
    x = 402,828,264,877.74/828,980.80
  6. Step 6: Final answer
    x = 485,931.96

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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.