Home / 828,127.80-1,242,191.70-694,283.40

Finding the Fourth Proportional to 828,127.80, 1,242,191.70 and 694,283.40

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Solution

The fourth proportional to 828,127.80, 1,242,191.70 and 694,283.40 is: 1,041,425.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,127.80 : 1,242,191.70 = 694,283.40 : x
  2. Step 2: Convert to fraction form
    828,127.80/1,242,191.70 = 694,283.40/x
  3. Step 3: Cross multiply
    828,127.80x = 1,242,191.70 × 694,283.40
  4. Step 4: Simplify right side
    828,127.80x = 862,433,076,927.78
  5. Step 5: Solve for x
    x = 862,433,076,927.78/828,127.80
  6. Step 6: Final answer
    x = 1,041,425.10

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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.