Home / 520,629.11-780,746.54-283,842.89

Finding the Fourth Proportional to 520,629.11, 780,746.54 and 283,842.89

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Solution

The fourth proportional to 520,629.11, 780,746.54 and 283,842.89 is: 425,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,629.11 : 780,746.54 = 283,842.89 : x
  2. Step 2: Convert to fraction form
    520,629.11/780,746.54 = 283,842.89/x
  3. Step 3: Cross multiply
    520,629.11x = 780,746.54 × 283,842.89
  4. Step 4: Simplify right side
    520,629.11x = 221,609,348,948.15
  5. Step 5: Solve for x
    x = 221,609,348,948.15/520,629.11
  6. Step 6: Final answer
    x = 425,656.86

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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.