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Finding the Fourth Proportional to 651,273.28, 898,308.39 and 458,090.71

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Solution

The fourth proportional to 651,273.28, 898,308.39 and 458,090.71 is: 631,849.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,273.28 : 898,308.39 = 458,090.71 : x
  2. Step 2: Convert to fraction form
    651,273.28/898,308.39 = 458,090.71/x
  3. Step 3: Cross multiply
    651,273.28x = 898,308.39 × 458,090.71
  4. Step 4: Simplify right side
    651,273.28x = 411,506,728,174.06
  5. Step 5: Solve for x
    x = 411,506,728,174.06/651,273.28
  6. Step 6: Final answer
    x = 631,849.55

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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.