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Finding the Fourth Proportional to 580,499.51, 869,718.09 and 495,396.05

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Solution

The fourth proportional to 580,499.51, 869,718.09 and 495,396.05 is: 742,214.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,499.51 : 869,718.09 = 495,396.05 : x
  2. Step 2: Convert to fraction form
    580,499.51/869,718.09 = 495,396.05/x
  3. Step 3: Cross multiply
    580,499.51x = 869,718.09 × 495,396.05
  4. Step 4: Simplify right side
    580,499.51x = 430,854,906,399.55
  5. Step 5: Solve for x
    x = 430,854,906,399.55/580,499.51
  6. Step 6: Final answer
    x = 742,214.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.