Home / 813,641.18-1,220,014.64-646,233.62

Finding the Fourth Proportional to 813,641.18, 1,220,014.64 and 646,233.62

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Solution

The fourth proportional to 813,641.18, 1,220,014.64 and 646,233.62 is: 968,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,641.18 : 1,220,014.64 = 646,233.62 : x
  2. Step 2: Convert to fraction form
    813,641.18/1,220,014.64 = 646,233.62/x
  3. Step 3: Cross multiply
    813,641.18x = 1,220,014.64 × 646,233.62
  4. Step 4: Simplify right side
    813,641.18x = 788,414,477,260.20
  5. Step 5: Solve for x
    x = 788,414,477,260.20/813,641.18
  6. Step 6: Final answer
    x = 968,995.30

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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.