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Finding the Fourth Proportional to 570,760.44, 787,618.94 and 312,624.03

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Solution

The fourth proportional to 570,760.44, 787,618.94 and 312,624.03 is: 431,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,760.44 : 787,618.94 = 312,624.03 : x
  2. Step 2: Convert to fraction form
    570,760.44/787,618.94 = 312,624.03/x
  3. Step 3: Cross multiply
    570,760.44x = 787,618.94 × 312,624.03
  4. Step 4: Simplify right side
    570,760.44x = 246,228,607,127.13
  5. Step 5: Solve for x
    x = 246,228,607,127.13/570,760.44
  6. Step 6: Final answer
    x = 431,404.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.