Home / 828,955.80-1,243,433.70-765,970.20

Finding the Fourth Proportional to 828,955.80, 1,243,433.70 and 765,970.20

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Solution

The fourth proportional to 828,955.80, 1,243,433.70 and 765,970.20 is: 1,148,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,955.80 : 1,243,433.70 = 765,970.20 : x
  2. Step 2: Convert to fraction form
    828,955.80/1,243,433.70 = 765,970.20/x
  3. Step 3: Cross multiply
    828,955.80x = 1,243,433.70 × 765,970.20
  4. Step 4: Simplify right side
    828,955.80x = 952,433,159,875.74
  5. Step 5: Solve for x
    x = 952,433,159,875.74/828,955.80
  6. Step 6: Final answer
    x = 1,148,955.30

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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.