Home / 700,679.77-966,938.07-378,389.84

Finding the Fourth Proportional to 700,679.77, 966,938.07 and 378,389.84

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Solution

The fourth proportional to 700,679.77, 966,938.07 and 378,389.84 is: 522,177.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,679.77 : 966,938.07 = 378,389.84 : x
  2. Step 2: Convert to fraction form
    700,679.77/966,938.07 = 378,389.84/x
  3. Step 3: Cross multiply
    700,679.77x = 966,938.07 × 378,389.84
  4. Step 4: Simplify right side
    700,679.77x = 365,879,541,597.21
  5. Step 5: Solve for x
    x = 365,879,541,597.21/700,679.77
  6. Step 6: Final answer
    x = 522,177.98

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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.