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Finding the Fourth Proportional to 586,399.60, 809,318.28 and 371,559.67

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Solution

The fourth proportional to 586,399.60, 809,318.28 and 371,559.67 is: 512,807.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,399.60 : 809,318.28 = 371,559.67 : x
  2. Step 2: Convert to fraction form
    586,399.60/809,318.28 = 371,559.67/x
  3. Step 3: Cross multiply
    586,399.60x = 809,318.28 × 371,559.67
  4. Step 4: Simplify right side
    586,399.60x = 300,710,033,041.77
  5. Step 5: Solve for x
    x = 300,710,033,041.77/586,399.60
  6. Step 6: Final answer
    x = 512,807.36

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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.