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Finding the Fourth Proportional to 500,329.94, 690,559.56 and 459,979.79

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Solution

The fourth proportional to 500,329.94, 690,559.56 and 459,979.79 is: 634,867.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,329.94 : 690,559.56 = 459,979.79 : x
  2. Step 2: Convert to fraction form
    500,329.94/690,559.56 = 459,979.79/x
  3. Step 3: Cross multiply
    500,329.94x = 690,559.56 × 459,979.79
  4. Step 4: Simplify right side
    500,329.94x = 317,643,437,938.50
  5. Step 5: Solve for x
    x = 317,643,437,938.50/500,329.94
  6. Step 6: Final answer
    x = 634,867.95

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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.