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Finding the Fourth Proportional to 586,591.24, 809,495.88 and 318,319.24

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Solution

The fourth proportional to 586,591.24, 809,495.88 and 318,319.24 is: 439,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,591.24 : 809,495.88 = 318,319.24 : x
  2. Step 2: Convert to fraction form
    586,591.24/809,495.88 = 318,319.24/x
  3. Step 3: Cross multiply
    586,591.24x = 809,495.88 × 318,319.24
  4. Step 4: Simplify right side
    586,591.24x = 257,678,113,304.73
  5. Step 5: Solve for x
    x = 257,678,113,304.73/586,591.24
  6. Step 6: Final answer
    x = 439,280.53

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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.