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Finding the Fourth Proportional to 760,182.84, 1,049,008.86 and 420,630.84

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Solution

The fourth proportional to 760,182.84, 1,049,008.86 and 420,630.84 is: 580,446.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,182.84 : 1,049,008.86 = 420,630.84 : x
  2. Step 2: Convert to fraction form
    760,182.84/1,049,008.86 = 420,630.84/x
  3. Step 3: Cross multiply
    760,182.84x = 1,049,008.86 × 420,630.84
  4. Step 4: Simplify right side
    760,182.84x = 441,245,477,949.24
  5. Step 5: Solve for x
    x = 441,245,477,949.24/760,182.84
  6. Step 6: Final answer
    x = 580,446.51

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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.