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Finding the Fourth Proportional to 570,154.39, 786,759.63 and 340,665.97

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Solution

The fourth proportional to 570,154.39, 786,759.63 and 340,665.97 is: 470,087.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,154.39 : 786,759.63 = 340,665.97 : x
  2. Step 2: Convert to fraction form
    570,154.39/786,759.63 = 340,665.97/x
  3. Step 3: Cross multiply
    570,154.39x = 786,759.63 × 340,665.97
  4. Step 4: Simplify right side
    570,154.39x = 268,022,232,510.79
  5. Step 5: Solve for x
    x = 268,022,232,510.79/570,154.39
  6. Step 6: Final answer
    x = 470,087.12

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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.