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Finding the Fourth Proportional to 722,015.76, 996,068.86 and 435,376.61

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Solution

The fourth proportional to 722,015.76, 996,068.86 and 435,376.61 is: 600,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,015.76 : 996,068.86 = 435,376.61 : x
  2. Step 2: Convert to fraction form
    722,015.76/996,068.86 = 435,376.61/x
  3. Step 3: Cross multiply
    722,015.76x = 996,068.86 × 435,376.61
  4. Step 4: Simplify right side
    722,015.76x = 433,665,083,593.37
  5. Step 5: Solve for x
    x = 433,665,083,593.37/722,015.76
  6. Step 6: Final answer
    x = 600,631.05

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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.