Home / 1,992,730.20-2,989,095.30-1,858,885.80

Finding the Fourth Proportional to 1,992,730.20, 2,989,095.30 and 1,858,885.80

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Solution

The fourth proportional to 1,992,730.20, 2,989,095.30 and 1,858,885.80 is: 2,788,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,730.20 : 2,989,095.30 = 1,858,885.80 : x
  2. Step 2: Convert to fraction form
    1,992,730.20/2,989,095.30 = 1,858,885.80/x
  3. Step 3: Cross multiply
    1,992,730.20x = 2,989,095.30 × 1,858,885.80
  4. Step 4: Simplify right side
    1,992,730.20x = 5,556,386,808,016.74
  5. Step 5: Solve for x
    x = 5,556,386,808,016.74/1,992,730.20
  6. Step 6: Final answer
    x = 2,788,328.70

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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.