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Finding the Fourth Proportional to 586,398.60, 809,316.90 and 371,558.67

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Solution

The fourth proportional to 586,398.60, 809,316.90 and 371,558.67 is: 512,805.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,398.60 : 809,316.90 = 371,558.67 : x
  2. Step 2: Convert to fraction form
    586,398.60/809,316.90 = 371,558.67/x
  3. Step 3: Cross multiply
    586,398.60x = 809,316.90 × 371,558.67
  4. Step 4: Simplify right side
    586,398.60x = 300,708,710,972.52
  5. Step 5: Solve for x
    x = 300,708,710,972.52/586,398.60
  6. Step 6: Final answer
    x = 512,805.98

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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.