Home / 765,812.58-1,056,803.83-479,490.54

Finding the Fourth Proportional to 765,812.58, 1,056,803.83 and 479,490.54

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Solution

The fourth proportional to 765,812.58, 1,056,803.83 and 479,490.54 is: 661,685.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,812.58 : 1,056,803.83 = 479,490.54 : x
  2. Step 2: Convert to fraction form
    765,812.58/1,056,803.83 = 479,490.54/x
  3. Step 3: Cross multiply
    765,812.58x = 1,056,803.83 × 479,490.54
  4. Step 4: Simplify right side
    765,812.58x = 506,727,439,120.77
  5. Step 5: Solve for x
    x = 506,727,439,120.77/765,812.58
  6. Step 6: Final answer
    x = 661,685.97

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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.