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Finding the Fourth Proportional to 788,551, 1,088,200.38 and 430,855

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Solution

The fourth proportional to 788,551, 1,088,200.38 and 430,855 is: 594,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,551 : 1,088,200.38 = 430,855 : x
  2. Step 2: Convert to fraction form
    788,551/1,088,200.38 = 430,855/x
  3. Step 3: Cross multiply
    788,551x = 1,088,200.38 × 430,855
  4. Step 4: Simplify right side
    788,551x = 468,856,574,724.90
  5. Step 5: Solve for x
    x = 468,856,574,724.90/788,551
  6. Step 6: Final answer
    x = 594,579.90

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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.