Home / 551,014.20-760,410.84-309,314.28

Finding the Fourth Proportional to 551,014.20, 760,410.84 and 309,314.28

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Solution

The fourth proportional to 551,014.20, 760,410.84 and 309,314.28 is: 426,860.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,014.20 : 760,410.84 = 309,314.28 : x
  2. Step 2: Convert to fraction form
    551,014.20/760,410.84 = 309,314.28/x
  3. Step 3: Cross multiply
    551,014.20x = 760,410.84 × 309,314.28
  4. Step 4: Simplify right side
    551,014.20x = 235,205,931,478.80
  5. Step 5: Solve for x
    x = 235,205,931,478.80/551,014.20
  6. Step 6: Final answer
    x = 426,860.02

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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.