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Finding the Fourth Proportional to 586,597.94, 809,505.15 and 318,325.94

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Solution

The fourth proportional to 586,597.94, 809,505.15 and 318,325.94 is: 439,289.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,597.94 : 809,505.15 = 318,325.94 : x
  2. Step 2: Convert to fraction form
    586,597.94/809,505.15 = 318,325.94/x
  3. Step 3: Cross multiply
    586,597.94x = 809,505.15 × 318,325.94
  4. Step 4: Simplify right side
    586,597.94x = 257,686,487,808.59
  5. Step 5: Solve for x
    x = 257,686,487,808.59/586,597.94
  6. Step 6: Final answer
    x = 439,289.79

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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.