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Finding the Fourth Proportional to 541,807.80, 811,545.30 and 448,495.80

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Solution

The fourth proportional to 541,807.80, 811,545.30 and 448,495.80 is: 671,778.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,807.80 : 811,545.30 = 448,495.80 : x
  2. Step 2: Convert to fraction form
    541,807.80/811,545.30 = 448,495.80/x
  3. Step 3: Cross multiply
    541,807.80x = 811,545.30 × 448,495.80
  4. Step 4: Simplify right side
    541,807.80x = 363,974,658,559.74
  5. Step 5: Solve for x
    x = 363,974,658,559.74/541,807.80
  6. Step 6: Final answer
    x = 671,778.18

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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.