Home / 806,561.20-1,209,783.48-385,724.08

Finding the Fourth Proportional to 806,561.20, 1,209,783.48 and 385,724.08

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Solution

The fourth proportional to 806,561.20, 1,209,783.48 and 385,724.08 is: 578,558.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,561.20 : 1,209,783.48 = 385,724.08 : x
  2. Step 2: Convert to fraction form
    806,561.20/1,209,783.48 = 385,724.08/x
  3. Step 3: Cross multiply
    806,561.20x = 1,209,783.48 × 385,724.08
  4. Step 4: Simplify right side
    806,561.20x = 466,642,619,822.20
  5. Step 5: Solve for x
    x = 466,642,619,822.20/806,561.20
  6. Step 6: Final answer
    x = 578,558.23

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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.