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Finding the Fourth Proportional to 916,832.40, 1,375,248.60 and 838,035.60

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Solution

The fourth proportional to 916,832.40, 1,375,248.60 and 838,035.60 is: 1,257,053.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,832.40 : 1,375,248.60 = 838,035.60 : x
  2. Step 2: Convert to fraction form
    916,832.40/1,375,248.60 = 838,035.60/x
  3. Step 3: Cross multiply
    916,832.40x = 1,375,248.60 × 838,035.60
  4. Step 4: Simplify right side
    916,832.40x = 1,152,507,285,650.16
  5. Step 5: Solve for x
    x = 1,152,507,285,650.16/916,832.40
  6. Step 6: Final answer
    x = 1,257,053.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.