Home / 760,500.66-1,049,478.21-420,961.62

Finding the Fourth Proportional to 760,500.66, 1,049,478.21 and 420,961.62

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Solution

The fourth proportional to 760,500.66, 1,049,478.21 and 420,961.62 is: 580,920.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,500.66 : 1,049,478.21 = 420,961.62 : x
  2. Step 2: Convert to fraction form
    760,500.66/1,049,478.21 = 420,961.62/x
  3. Step 3: Cross multiply
    760,500.66x = 1,049,478.21 × 420,961.62
  4. Step 4: Simplify right side
    760,500.66x = 441,790,047,436.30
  5. Step 5: Solve for x
    x = 441,790,047,436.30/760,500.66
  6. Step 6: Final answer
    x = 580,920.01

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1.5x scale

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.