Home / 873,116.20-1,309,674.30-768,140.20

Finding the Fourth Proportional to 873,116.20, 1,309,674.30 and 768,140.20

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Solution

The fourth proportional to 873,116.20, 1,309,674.30 and 768,140.20 is: 1,152,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,116.20 : 1,309,674.30 = 768,140.20 : x
  2. Step 2: Convert to fraction form
    873,116.20/1,309,674.30 = 768,140.20/x
  3. Step 3: Cross multiply
    873,116.20x = 1,309,674.30 × 768,140.20
  4. Step 4: Simplify right side
    873,116.20x = 1,006,013,478,736.86
  5. Step 5: Solve for x
    x = 1,006,013,478,736.86/873,116.20
  6. Step 6: Final answer
    x = 1,152,210.30

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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.