Home / 772,495.20-1,158,742.80-520,552.80

Finding the Fourth Proportional to 772,495.20, 1,158,742.80 and 520,552.80

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Solution

The fourth proportional to 772,495.20, 1,158,742.80 and 520,552.80 is: 780,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,495.20 : 1,158,742.80 = 520,552.80 : x
  2. Step 2: Convert to fraction form
    772,495.20/1,158,742.80 = 520,552.80/x
  3. Step 3: Cross multiply
    772,495.20x = 1,158,742.80 × 520,552.80
  4. Step 4: Simplify right side
    772,495.20x = 603,186,809,019.84
  5. Step 5: Solve for x
    x = 603,186,809,019.84/772,495.20
  6. Step 6: Final answer
    x = 780,829.20

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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.