Home / 851,030.20-1,276,545.30-536,879.80

Finding the Fourth Proportional to 851,030.20, 1,276,545.30 and 536,879.80

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Solution

The fourth proportional to 851,030.20, 1,276,545.30 and 536,879.80 is: 805,319.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,030.20 : 1,276,545.30 = 536,879.80 : x
  2. Step 2: Convert to fraction form
    851,030.20/1,276,545.30 = 536,879.80/x
  3. Step 3: Cross multiply
    851,030.20x = 1,276,545.30 × 536,879.80
  4. Step 4: Simplify right side
    851,030.20x = 685,351,385,354.94
  5. Step 5: Solve for x
    x = 685,351,385,354.94/851,030.20
  6. Step 6: Final answer
    x = 805,319.70

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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.