Home / 780,028.60-1,168,045.38-539,809.88

Finding the Fourth Proportional to 780,028.60, 1,168,045.38 and 539,809.88

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Solution

The fourth proportional to 780,028.60, 1,168,045.38 and 539,809.88 is: 808,332.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,028.60 : 1,168,045.38 = 539,809.88 : x
  2. Step 2: Convert to fraction form
    780,028.60/1,168,045.38 = 539,809.88/x
  3. Step 3: Cross multiply
    780,028.60x = 1,168,045.38 × 539,809.88
  4. Step 4: Simplify right side
    780,028.60x = 630,522,436,507.63
  5. Step 5: Solve for x
    x = 630,522,436,507.63/780,028.60
  6. Step 6: Final answer
    x = 808,332.46

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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.