Home / 1,521,123.45-2,099,175.12-832,783.70

Finding the Fourth Proportional to 1,521,123.45, 2,099,175.12 and 832,783.70

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Solution

The fourth proportional to 1,521,123.45, 2,099,175.12 and 832,783.70 is: 1,149,255.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,123.45 : 2,099,175.12 = 832,783.70 : x
  2. Step 2: Convert to fraction form
    1,521,123.45/2,099,175.12 = 832,783.70/x
  3. Step 3: Cross multiply
    1,521,123.45x = 2,099,175.12 × 832,783.70
  4. Step 4: Simplify right side
    1,521,123.45x = 1,748,158,812,885.67
  5. Step 5: Solve for x
    x = 1,748,158,812,885.67/1,521,123.45
  6. Step 6: Final answer
    x = 1,149,255.05

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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.