Home / 778,857.60-1,162,652.40-684,379.20

Finding the Fourth Proportional to 778,857.60, 1,162,652.40 and 684,379.20

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Solution

The fourth proportional to 778,857.60, 1,162,652.40 and 684,379.20 is: 1,021,618.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,857.60 : 1,162,652.40 = 684,379.20 : x
  2. Step 2: Convert to fraction form
    778,857.60/1,162,652.40 = 684,379.20/x
  3. Step 3: Cross multiply
    778,857.60x = 1,162,652.40 × 684,379.20
  4. Step 4: Simplify right side
    778,857.60x = 795,695,119,390.08
  5. Step 5: Solve for x
    x = 795,695,119,390.08/778,857.60
  6. Step 6: Final answer
    x = 1,021,618.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.