Home / 778,181.91-1,074,390.84-488,191.08

Finding the Fourth Proportional to 778,181.91, 1,074,390.84 and 488,191.08

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Solution

The fourth proportional to 778,181.91, 1,074,390.84 and 488,191.08 is: 674,017.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,181.91 : 1,074,390.84 = 488,191.08 : x
  2. Step 2: Convert to fraction form
    778,181.91/1,074,390.84 = 488,191.08/x
  3. Step 3: Cross multiply
    778,181.91x = 1,074,390.84 × 488,191.08
  4. Step 4: Simplify right side
    778,181.91x = 524,508,024,521.71
  5. Step 5: Solve for x
    x = 524,508,024,521.71/778,181.91
  6. Step 6: Final answer
    x = 674,017.24

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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.