Home / 780,278.90-1,170,654.26-553,014.05

Finding the Fourth Proportional to 780,278.90, 1,170,654.26 and 553,014.05

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Solution

The fourth proportional to 780,278.90, 1,170,654.26 and 553,014.05 is: 829,688.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,278.90 : 1,170,654.26 = 553,014.05 : x
  2. Step 2: Convert to fraction form
    780,278.90/1,170,654.26 = 553,014.05/x
  3. Step 3: Cross multiply
    780,278.90x = 1,170,654.26 × 553,014.05
  4. Step 4: Simplify right side
    780,278.90x = 647,388,244,854.01
  5. Step 5: Solve for x
    x = 647,388,244,854.01/780,278.90
  6. Step 6: Final answer
    x = 829,688.27

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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.