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Finding the Fourth Proportional to 656,552.69, 906,112.37 and 384,848.88

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Solution

The fourth proportional to 656,552.69, 906,112.37 and 384,848.88 is: 531,132.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,552.69 : 906,112.37 = 384,848.88 : x
  2. Step 2: Convert to fraction form
    656,552.69/906,112.37 = 384,848.88/x
  3. Step 3: Cross multiply
    656,552.69x = 906,112.37 × 384,848.88
  4. Step 4: Simplify right side
    656,552.69x = 348,716,330,748.65
  5. Step 5: Solve for x
    x = 348,716,330,748.65/656,552.69
  6. Step 6: Final answer
    x = 531,132.29

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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.