Home / 772,200.20-1,157,378.70-322,920.20

Finding the Fourth Proportional to 772,200.20, 1,157,378.70 and 322,920.20

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Solution

The fourth proportional to 772,200.20, 1,157,378.70 and 322,920.20 is: 483,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,200.20 : 1,157,378.70 = 322,920.20 : x
  2. Step 2: Convert to fraction form
    772,200.20/1,157,378.70 = 322,920.20/x
  3. Step 3: Cross multiply
    772,200.20x = 1,157,378.70 × 322,920.20
  4. Step 4: Simplify right side
    772,200.20x = 373,740,961,279.74
  5. Step 5: Solve for x
    x = 373,740,961,279.74/772,200.20
  6. Step 6: Final answer
    x = 483,994.90

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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.