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Finding the Fourth Proportional to 803,950.20, 1,206,702.90 and 489,022.20

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Solution

The fourth proportional to 803,950.20, 1,206,702.90 and 489,022.20 is: 734,006.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,950.20 : 1,206,702.90 = 489,022.20 : x
  2. Step 2: Convert to fraction form
    803,950.20/1,206,702.90 = 489,022.20/x
  3. Step 3: Cross multiply
    803,950.20x = 1,206,702.90 × 489,022.20
  4. Step 4: Simplify right side
    803,950.20x = 590,104,506,904.38
  5. Step 5: Solve for x
    x = 590,104,506,904.38/803,950.20
  6. Step 6: Final answer
    x = 734,006.29

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1.5x scale

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.