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Finding the Fourth Proportional to 579,464.24, 869,019.56 and 400,698.86

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Solution

The fourth proportional to 579,464.24, 869,019.56 and 400,698.86 is: 600,926.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,464.24 : 869,019.56 = 400,698.86 : x
  2. Step 2: Convert to fraction form
    579,464.24/869,019.56 = 400,698.86/x
  3. Step 3: Cross multiply
    579,464.24x = 869,019.56 × 400,698.86
  4. Step 4: Simplify right side
    579,464.24x = 348,215,147,009.70
  5. Step 5: Solve for x
    x = 348,215,147,009.70/579,464.24
  6. Step 6: Final answer
    x = 600,926.03

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1.5x scale

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.