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Finding the Fourth Proportional to 584,649.88, 806,269.29 and 388,068.70

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Solution

The fourth proportional to 584,649.88, 806,269.29 and 388,068.70 is: 535,171.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,649.88 : 806,269.29 = 388,068.70 : x
  2. Step 2: Convert to fraction form
    584,649.88/806,269.29 = 388,068.70/x
  3. Step 3: Cross multiply
    584,649.88x = 806,269.29 × 388,068.70
  4. Step 4: Simplify right side
    584,649.88x = 312,887,875,220.22
  5. Step 5: Solve for x
    x = 312,887,875,220.22/584,649.88
  6. Step 6: Final answer
    x = 535,171.37

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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.