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Finding the Fourth Proportional to 631,013.05, 870,797.52 and 344,533.13

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Solution

The fourth proportional to 631,013.05, 870,797.52 and 344,533.13 is: 475,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,013.05 : 870,797.52 = 344,533.13 : x
  2. Step 2: Convert to fraction form
    631,013.05/870,797.52 = 344,533.13/x
  3. Step 3: Cross multiply
    631,013.05x = 870,797.52 × 344,533.13
  4. Step 4: Simplify right side
    631,013.05x = 300,018,594,073.34
  5. Step 5: Solve for x
    x = 300,018,594,073.34/631,013.05
  6. Step 6: Final answer
    x = 475,455.45

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Double scale
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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.