Home / 778,811.83-1,074,774.32-456,754.21

Finding the Fourth Proportional to 778,811.83, 1,074,774.32 and 456,754.21

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Solution

The fourth proportional to 778,811.83, 1,074,774.32 and 456,754.21 is: 630,329.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,811.83 : 1,074,774.32 = 456,754.21 : x
  2. Step 2: Convert to fraction form
    778,811.83/1,074,774.32 = 456,754.21/x
  3. Step 3: Cross multiply
    778,811.83x = 1,074,774.32 × 456,754.21
  4. Step 4: Simplify right side
    778,811.83x = 490,907,692,202.01
  5. Step 5: Solve for x
    x = 490,907,692,202.01/778,811.83
  6. Step 6: Final answer
    x = 630,329.02

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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.