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Finding the Fourth Proportional to 774,490.88, 1,068,793.93 and 430,382.84

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Solution

The fourth proportional to 774,490.88, 1,068,793.93 and 430,382.84 is: 593,926.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,490.88 : 1,068,793.93 = 430,382.84 : x
  2. Step 2: Convert to fraction form
    774,490.88/1,068,793.93 = 430,382.84/x
  3. Step 3: Cross multiply
    774,490.88x = 1,068,793.93 × 430,382.84
  4. Step 4: Simplify right side
    774,490.88x = 459,990,562,162.17
  5. Step 5: Solve for x
    x = 459,990,562,162.17/774,490.88
  6. Step 6: Final answer
    x = 593,926.37

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Double scale
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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.