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Finding the Fourth Proportional to 578,201.80, 867,302.70 and 536,211.40

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Solution

The fourth proportional to 578,201.80, 867,302.70 and 536,211.40 is: 804,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,201.80 : 867,302.70 = 536,211.40 : x
  2. Step 2: Convert to fraction form
    578,201.80/867,302.70 = 536,211.40/x
  3. Step 3: Cross multiply
    578,201.80x = 867,302.70 × 536,211.40
  4. Step 4: Simplify right side
    578,201.80x = 465,057,594,990.78
  5. Step 5: Solve for x
    x = 465,057,594,990.78/578,201.80
  6. Step 6: Final answer
    x = 804,317.10

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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.