Home / 705,090.60-1,057,818.15-305,639.10

Finding the Fourth Proportional to 705,090.60, 1,057,818.15 and 305,639.10

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Solution

The fourth proportional to 705,090.60, 1,057,818.15 and 305,639.10 is: 458,537.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,090.60 : 1,057,818.15 = 305,639.10 : x
  2. Step 2: Convert to fraction form
    705,090.60/1,057,818.15 = 305,639.10/x
  3. Step 3: Cross multiply
    705,090.60x = 1,057,818.15 × 305,639.10
  4. Step 4: Simplify right side
    705,090.60x = 323,310,587,329.67
  5. Step 5: Solve for x
    x = 323,310,587,329.67/705,090.60
  6. Step 6: Final answer
    x = 458,537.65

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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.