Home / 1,521,123.95-2,099,175.81-832,784.20

Finding the Fourth Proportional to 1,521,123.95, 2,099,175.81 and 832,784.20

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Solution

The fourth proportional to 1,521,123.95, 2,099,175.81 and 832,784.20 is: 1,149,255.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,123.95 : 2,099,175.81 = 832,784.20 : x
  2. Step 2: Convert to fraction form
    1,521,123.95/2,099,175.81 = 832,784.20/x
  3. Step 3: Cross multiply
    1,521,123.95x = 2,099,175.81 × 832,784.20
  4. Step 4: Simplify right side
    1,521,123.95x = 1,748,160,447,590.20
  5. Step 5: Solve for x
    x = 1,748,160,447,590.20/1,521,123.95
  6. Step 6: Final answer
    x = 1,149,255.75

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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.