Home / 753,609.60-1,130,284.80-280,051.20

Finding the Fourth Proportional to 753,609.60, 1,130,284.80 and 280,051.20

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Solution

The fourth proportional to 753,609.60, 1,130,284.80 and 280,051.20 is: 420,028.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,609.60 : 1,130,284.80 = 280,051.20 : x
  2. Step 2: Convert to fraction form
    753,609.60/1,130,284.80 = 280,051.20/x
  3. Step 3: Cross multiply
    753,609.60x = 1,130,284.80 × 280,051.20
  4. Step 4: Simplify right side
    753,609.60x = 316,537,614,581.76
  5. Step 5: Solve for x
    x = 316,537,614,581.76/753,609.60
  6. Step 6: Final answer
    x = 420,028.64

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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.