Home / 500,338.20-690,570.96-459,988.05

Finding the Fourth Proportional to 500,338.20, 690,570.96 and 459,988.05

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Solution

The fourth proportional to 500,338.20, 690,570.96 and 459,988.05 is: 634,879.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,338.20 : 690,570.96 = 459,988.05 : x
  2. Step 2: Convert to fraction form
    500,338.20/690,570.96 = 459,988.05/x
  3. Step 3: Cross multiply
    500,338.20x = 690,570.96 × 459,988.05
  4. Step 4: Simplify right side
    500,338.20x = 317,654,389,277.03
  5. Step 5: Solve for x
    x = 317,654,389,277.03/500,338.20
  6. Step 6: Final answer
    x = 634,879.35

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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.