Home / 771,105.05-1,064,158.22-426,940.98

Finding the Fourth Proportional to 771,105.05, 1,064,158.22 and 426,940.98

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Solution

The fourth proportional to 771,105.05, 1,064,158.22 and 426,940.98 is: 589,196.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,105.05 : 1,064,158.22 = 426,940.98 : x
  2. Step 2: Convert to fraction form
    771,105.05/1,064,158.22 = 426,940.98/x
  3. Step 3: Cross multiply
    771,105.05x = 1,064,158.22 × 426,940.98
  4. Step 4: Simplify right side
    771,105.05x = 454,332,750,398.62
  5. Step 5: Solve for x
    x = 454,332,750,398.62/771,105.05
  6. Step 6: Final answer
    x = 589,196.96

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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.