Home / 700,680.25-966,938.74-378,390.33

Finding the Fourth Proportional to 700,680.25, 966,938.74 and 378,390.33

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Solution

The fourth proportional to 700,680.25, 966,938.74 and 378,390.33 is: 522,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,680.25 : 966,938.74 = 378,390.33 : x
  2. Step 2: Convert to fraction form
    700,680.25/966,938.74 = 378,390.33/x
  3. Step 3: Cross multiply
    700,680.25x = 966,938.74 × 378,390.33
  4. Step 4: Simplify right side
    700,680.25x = 365,880,266,317.12
  5. Step 5: Solve for x
    x = 365,880,266,317.12/700,680.25
  6. Step 6: Final answer
    x = 522,178.65

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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.