Home / 668,475.28-1,003,349.58-414,988.60

Finding the Fourth Proportional to 668,475.28, 1,003,349.58 and 414,988.60

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Solution

The fourth proportional to 668,475.28, 1,003,349.58 and 414,988.60 is: 622,878.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,475.28 : 1,003,349.58 = 414,988.60 : x
  2. Step 2: Convert to fraction form
    668,475.28/1,003,349.58 = 414,988.60/x
  3. Step 3: Cross multiply
    668,475.28x = 1,003,349.58 × 414,988.60
  4. Step 4: Simplify right side
    668,475.28x = 416,378,637,514.79
  5. Step 5: Solve for x
    x = 416,378,637,514.79/668,475.28
  6. Step 6: Final answer
    x = 622,878.14

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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.