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Finding the Fourth Proportional to 610,845.60, 916,009.20 and 295,399.20

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Solution

The fourth proportional to 610,845.60, 916,009.20 and 295,399.20 is: 442,973.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,845.60 : 916,009.20 = 295,399.20 : x
  2. Step 2: Convert to fraction form
    610,845.60/916,009.20 = 295,399.20/x
  3. Step 3: Cross multiply
    610,845.60x = 916,009.20 × 295,399.20
  4. Step 4: Simplify right side
    610,845.60x = 270,588,384,872.64
  5. Step 5: Solve for x
    x = 270,588,384,872.64/610,845.60
  6. Step 6: Final answer
    x = 442,973.45

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1.5x scale

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.