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Finding the Fourth Proportional to 570,288.36, 786,871.98 and 340,811.22

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Solution

The fourth proportional to 570,288.36, 786,871.98 and 340,811.22 is: 470,244.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,288.36 : 786,871.98 = 340,811.22 : x
  2. Step 2: Convert to fraction form
    570,288.36/786,871.98 = 340,811.22/x
  3. Step 3: Cross multiply
    570,288.36x = 786,871.98 × 340,811.22
  4. Step 4: Simplify right side
    570,288.36x = 268,174,799,487.62
  5. Step 5: Solve for x
    x = 268,174,799,487.62/570,288.36
  6. Step 6: Final answer
    x = 470,244.21

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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.