Home / 828,396.81-1,240,602.31-472,331.34

Finding the Fourth Proportional to 828,396.81, 1,240,602.31 and 472,331.34

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Solution

The fourth proportional to 828,396.81, 1,240,602.31 and 472,331.34 is: 707,360.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,396.81 : 1,240,602.31 = 472,331.34 : x
  2. Step 2: Convert to fraction form
    828,396.81/1,240,602.31 = 472,331.34/x
  3. Step 3: Cross multiply
    828,396.81x = 1,240,602.31 × 472,331.34
  4. Step 4: Simplify right side
    828,396.81x = 585,975,351,489.40
  5. Step 5: Solve for x
    x = 585,975,351,489.40/828,396.81
  6. Step 6: Final answer
    x = 707,360.70

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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.