Home / 778,774.74-1,074,719.28-452,164.32

Finding the Fourth Proportional to 778,774.74, 1,074,719.28 and 452,164.32

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Solution

The fourth proportional to 778,774.74, 1,074,719.28 and 452,164.32 is: 623,992.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,774.74 : 1,074,719.28 = 452,164.32 : x
  2. Step 2: Convert to fraction form
    778,774.74/1,074,719.28 = 452,164.32/x
  3. Step 3: Cross multiply
    778,774.74x = 1,074,719.28 × 452,164.32
  4. Step 4: Simplify right side
    778,774.74x = 485,949,712,432.09
  5. Step 5: Solve for x
    x = 485,949,712,432.09/778,774.74
  6. Step 6: Final answer
    x = 623,992.65

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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.