Home / 525,278,492.80-787,917,739.20-404,346,140.80

Finding the Fourth Proportional to 525,278,492.80, 787,917,739.20 and 404,346,140.80

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Solution

The fourth proportional to 525,278,492.80, 787,917,739.20 and 404,346,140.80 is: 606,519,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,278,492.80 : 787,917,739.20 = 404,346,140.80 : x
  2. Step 2: Convert to fraction form
    525,278,492.80/787,917,739.20 = 404,346,140.80/x
  3. Step 3: Cross multiply
    525,278,492.80x = 787,917,739.20 × 404,346,140.80
  4. Step 4: Simplify right side
    525,278,492.80x = 318,591,497,113,380,928
  5. Step 5: Solve for x
    x = 318,591,497,113,380,928/525,278,492.80
  6. Step 6: Final answer
    x = 606,519,211.20

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Double scale
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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.