Home / 760,500.16-1,049,477.52-420,961.12

Finding the Fourth Proportional to 760,500.16, 1,049,477.52 and 420,961.12

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Solution

The fourth proportional to 760,500.16, 1,049,477.52 and 420,961.12 is: 580,919.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,500.16 : 1,049,477.52 = 420,961.12 : x
  2. Step 2: Convert to fraction form
    760,500.16/1,049,477.52 = 420,961.12/x
  3. Step 3: Cross multiply
    760,500.16x = 1,049,477.52 × 420,961.12
  4. Step 4: Simplify right side
    760,500.16x = 441,789,232,234.02
  5. Step 5: Solve for x
    x = 441,789,232,234.02/760,500.16
  6. Step 6: Final answer
    x = 580,919.32

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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.