Home / 904,421.12-1,248,115.78-496,560.56

Finding the Fourth Proportional to 904,421.12, 1,248,115.78 and 496,560.56

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Solution

The fourth proportional to 904,421.12, 1,248,115.78 and 496,560.56 is: 685,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,421.12 : 1,248,115.78 = 496,560.56 : x
  2. Step 2: Convert to fraction form
    904,421.12/1,248,115.78 = 496,560.56/x
  3. Step 3: Cross multiply
    904,421.12x = 1,248,115.78 × 496,560.56
  4. Step 4: Simplify right side
    904,421.12x = 619,765,070,661.64
  5. Step 5: Solve for x
    x = 619,765,070,661.64/904,421.12
  6. Step 6: Final answer
    x = 685,261.61

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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.