Home / 687,056.72-1,029,534.04-367,254.08

Finding the Fourth Proportional to 687,056.72, 1,029,534.04 and 367,254.08

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Solution

The fourth proportional to 687,056.72, 1,029,534.04 and 367,254.08 is: 550,319.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,056.72 : 1,029,534.04 = 367,254.08 : x
  2. Step 2: Convert to fraction form
    687,056.72/1,029,534.04 = 367,254.08/x
  3. Step 3: Cross multiply
    687,056.72x = 1,029,534.04 × 367,254.08
  4. Step 4: Simplify right side
    687,056.72x = 378,100,576,688.88
  5. Step 5: Solve for x
    x = 378,100,576,688.88/687,056.72
  6. Step 6: Final answer
    x = 550,319.31

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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.