Home / 778,609.18-1,074,277.26-456,145.90

Finding the Fourth Proportional to 778,609.18, 1,074,277.26 and 456,145.90

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Solution

The fourth proportional to 778,609.18, 1,074,277.26 and 456,145.90 is: 629,362.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,609.18 : 1,074,277.26 = 456,145.90 : x
  2. Step 2: Convert to fraction form
    778,609.18/1,074,277.26 = 456,145.90/x
  3. Step 3: Cross multiply
    778,609.18x = 1,074,277.26 × 456,145.90
  4. Step 4: Simplify right side
    778,609.18x = 490,027,167,612.23
  5. Step 5: Solve for x
    x = 490,027,167,612.23/778,609.18
  6. Step 6: Final answer
    x = 629,362.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.