Home / 688,033.40-1,030,494.90-408,097.40

Finding the Fourth Proportional to 688,033.40, 1,030,494.90 and 408,097.40

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Solution

The fourth proportional to 688,033.40, 1,030,494.90 and 408,097.40 is: 611,223.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,033.40 : 1,030,494.90 = 408,097.40 : x
  2. Step 2: Convert to fraction form
    688,033.40/1,030,494.90 = 408,097.40/x
  3. Step 3: Cross multiply
    688,033.40x = 1,030,494.90 × 408,097.40
  4. Step 4: Simplify right side
    688,033.40x = 420,542,289,403.26
  5. Step 5: Solve for x
    x = 420,542,289,403.26/688,033.40
  6. Step 6: Final answer
    x = 611,223.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.