Home / 687,090.52-1,030,152.92-302,656.96

Finding the Fourth Proportional to 687,090.52, 1,030,152.92 and 302,656.96

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Solution

The fourth proportional to 687,090.52, 1,030,152.92 and 302,656.96 is: 453,772.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,090.52 : 1,030,152.92 = 302,656.96 : x
  2. Step 2: Convert to fraction form
    687,090.52/1,030,152.92 = 302,656.96/x
  3. Step 3: Cross multiply
    687,090.52x = 1,030,152.92 × 302,656.96
  4. Step 4: Simplify right side
    687,090.52x = 311,782,951,102.32
  5. Step 5: Solve for x
    x = 311,782,951,102.32/687,090.52
  6. Step 6: Final answer
    x = 453,772.74

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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.