Home / 778,854.30-1,168,937.55-305,879.10

Finding the Fourth Proportional to 778,854.30, 1,168,937.55 and 305,879.10

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Solution

The fourth proportional to 778,854.30, 1,168,937.55 and 305,879.10 is: 459,076.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,854.30 : 1,168,937.55 = 305,879.10 : x
  2. Step 2: Convert to fraction form
    778,854.30/1,168,937.55 = 305,879.10/x
  3. Step 3: Cross multiply
    778,854.30x = 1,168,937.55 × 305,879.10
  4. Step 4: Simplify right side
    778,854.30x = 357,553,565,750.21
  5. Step 5: Solve for x
    x = 357,553,565,750.21/778,854.30
  6. Step 6: Final answer
    x = 459,076.32

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1.5x scale

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.