Home / 840,729.78-1,160,196.21-458,749.98

Finding the Fourth Proportional to 840,729.78, 1,160,196.21 and 458,749.98

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Solution

The fourth proportional to 840,729.78, 1,160,196.21 and 458,749.98 is: 633,069.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,729.78 : 1,160,196.21 = 458,749.98 : x
  2. Step 2: Convert to fraction form
    840,729.78/1,160,196.21 = 458,749.98/x
  3. Step 3: Cross multiply
    840,729.78x = 1,160,196.21 × 458,749.98
  4. Step 4: Simplify right side
    840,729.78x = 532,239,988,133.58
  5. Step 5: Solve for x
    x = 532,239,988,133.58/840,729.78
  6. Step 6: Final answer
    x = 633,069.03

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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.