Home / 898,902.12-1,240,476.48-491,003.76

Finding the Fourth Proportional to 898,902.12, 1,240,476.48 and 491,003.76

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Solution

The fourth proportional to 898,902.12, 1,240,476.48 and 491,003.76 is: 677,580.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,902.12 : 1,240,476.48 = 491,003.76 : x
  2. Step 2: Convert to fraction form
    898,902.12/1,240,476.48 = 491,003.76/x
  3. Step 3: Cross multiply
    898,902.12x = 1,240,476.48 × 491,003.76
  4. Step 4: Simplify right side
    898,902.12x = 609,078,615,871.57
  5. Step 5: Solve for x
    x = 609,078,615,871.57/898,902.12
  6. Step 6: Final answer
    x = 677,580.58

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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.