Home / 842,560.15-1,162,740.75-479,978.64

Finding the Fourth Proportional to 842,560.15, 1,162,740.75 and 479,978.64

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Solution

The fourth proportional to 842,560.15, 1,162,740.75 and 479,978.64 is: 662,374.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,560.15 : 1,162,740.75 = 479,978.64 : x
  2. Step 2: Convert to fraction form
    842,560.15/1,162,740.75 = 479,978.64/x
  3. Step 3: Cross multiply
    842,560.15x = 1,162,740.75 × 479,978.64
  4. Step 4: Simplify right side
    842,560.15x = 558,090,723,857.58
  5. Step 5: Solve for x
    x = 558,090,723,857.58/842,560.15
  6. Step 6: Final answer
    x = 662,374.93

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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.