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Finding the Fourth Proportional to 650,174.69, 897,421.40 and 378,295.10

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Solution

The fourth proportional to 650,174.69, 897,421.40 and 378,295.10 is: 522,152.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,174.69 : 897,421.40 = 378,295.10 : x
  2. Step 2: Convert to fraction form
    650,174.69/897,421.40 = 378,295.10/x
  3. Step 3: Cross multiply
    650,174.69x = 897,421.40 × 378,295.10
  4. Step 4: Simplify right side
    650,174.69x = 339,490,118,255.14
  5. Step 5: Solve for x
    x = 339,490,118,255.14/650,174.69
  6. Step 6: Final answer
    x = 522,152.16

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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.