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Finding the Fourth Proportional to 570,022.68, 786,626.73 and 315,387.84

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Solution

The fourth proportional to 570,022.68, 786,626.73 and 315,387.84 is: 435,232.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,022.68 : 786,626.73 = 315,387.84 : x
  2. Step 2: Convert to fraction form
    570,022.68/786,626.73 = 315,387.84/x
  3. Step 3: Cross multiply
    570,022.68x = 786,626.73 × 315,387.84
  4. Step 4: Simplify right side
    570,022.68x = 248,092,505,260.96
  5. Step 5: Solve for x
    x = 248,092,505,260.96/570,022.68
  6. Step 6: Final answer
    x = 435,232.69

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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.