Home / 813,927.86-1,220,202.89-308,210.09

Finding the Fourth Proportional to 813,927.86, 1,220,202.89 and 308,210.09

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Solution

The fourth proportional to 813,927.86, 1,220,202.89 and 308,210.09 is: 462,054.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,927.86 : 1,220,202.89 = 308,210.09 : x
  2. Step 2: Convert to fraction form
    813,927.86/1,220,202.89 = 308,210.09/x
  3. Step 3: Cross multiply
    813,927.86x = 1,220,202.89 × 308,210.09
  4. Step 4: Simplify right side
    813,927.86x = 376,078,836,058.88
  5. Step 5: Solve for x
    x = 376,078,836,058.88/813,927.86
  6. Step 6: Final answer
    x = 462,054.26

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1.5x scale

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.