Home / 435,949.32-601,903.64-389,865.98

Finding the Fourth Proportional to 435,949.32, 601,903.64 and 389,865.98

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Solution

The fourth proportional to 435,949.32, 601,903.64 and 389,865.98 is: 538,277.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,949.32 : 601,903.64 = 389,865.98 : x
  2. Step 2: Convert to fraction form
    435,949.32/601,903.64 = 389,865.98/x
  3. Step 3: Cross multiply
    435,949.32x = 601,903.64 × 389,865.98
  4. Step 4: Simplify right side
    435,949.32x = 234,661,747,515.32
  5. Step 5: Solve for x
    x = 234,661,747,515.32/435,949.32
  6. Step 6: Final answer
    x = 538,277.59

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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.