Home / 813,360.80-1,219,166.40-307,726.40

Finding the Fourth Proportional to 813,360.80, 1,219,166.40 and 307,726.40

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Solution

The fourth proportional to 813,360.80, 1,219,166.40 and 307,726.40 is: 461,258.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,360.80 : 1,219,166.40 = 307,726.40 : x
  2. Step 2: Convert to fraction form
    813,360.80/1,219,166.40 = 307,726.40/x
  3. Step 3: Cross multiply
    813,360.80x = 1,219,166.40 × 307,726.40
  4. Step 4: Simplify right side
    813,360.80x = 375,169,687,272.96
  5. Step 5: Solve for x
    x = 375,169,687,272.96/813,360.80
  6. Step 6: Final answer
    x = 461,258.63

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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.