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Finding the Fourth Proportional to 559,186.32, 771,698.97 and 317,491.39

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Solution

The fourth proportional to 559,186.32, 771,698.97 and 317,491.39 is: 438,150.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,186.32 : 771,698.97 = 317,491.39 : x
  2. Step 2: Convert to fraction form
    559,186.32/771,698.97 = 317,491.39/x
  3. Step 3: Cross multiply
    559,186.32x = 771,698.97 × 317,491.39
  4. Step 4: Simplify right side
    559,186.32x = 245,007,775,270.69
  5. Step 5: Solve for x
    x = 245,007,775,270.69/559,186.32
  6. Step 6: Final answer
    x = 438,150.51

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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.