Home / 760,515.20-1,140,832.20-339,833.60

Finding the Fourth Proportional to 760,515.20, 1,140,832.20 and 339,833.60

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Solution

The fourth proportional to 760,515.20, 1,140,832.20 and 339,833.60 is: 509,776.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,515.20 : 1,140,832.20 = 339,833.60 : x
  2. Step 2: Convert to fraction form
    760,515.20/1,140,832.20 = 339,833.60/x
  3. Step 3: Cross multiply
    760,515.20x = 1,140,832.20 × 339,833.60
  4. Step 4: Simplify right side
    760,515.20x = 387,693,113,521.92
  5. Step 5: Solve for x
    x = 387,693,113,521.92/760,515.20
  6. Step 6: Final answer
    x = 509,776.94

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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.