Home / 899,272.56-1,240,981.11-491,365.47

Finding the Fourth Proportional to 899,272.56, 1,240,981.11 and 491,365.47

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Solution

The fourth proportional to 899,272.56, 1,240,981.11 and 491,365.47 is: 678,076.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,272.56 : 1,240,981.11 = 491,365.47 : x
  2. Step 2: Convert to fraction form
    899,272.56/1,240,981.11 = 491,365.47/x
  3. Step 3: Cross multiply
    899,272.56x = 1,240,981.11 × 491,365.47
  4. Step 4: Simplify right side
    899,272.56x = 609,775,266,376.27
  5. Step 5: Solve for x
    x = 609,775,266,376.27/899,272.56
  6. Step 6: Final answer
    x = 678,076.14

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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.