Home / 1,358,134.40-1,874,115.78-785,211.50

Finding the Fourth Proportional to 1,358,134.40, 1,874,115.78 and 785,211.50

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Solution

The fourth proportional to 1,358,134.40, 1,874,115.78 and 785,211.50 is: 1,083,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,134.40 : 1,874,115.78 = 785,211.50 : x
  2. Step 2: Convert to fraction form
    1,358,134.40/1,874,115.78 = 785,211.50/x
  3. Step 3: Cross multiply
    1,358,134.40x = 1,874,115.78 × 785,211.50
  4. Step 4: Simplify right side
    1,358,134.40x = 1,471,577,262,787.47
  5. Step 5: Solve for x
    x = 1,471,577,262,787.47/1,358,134.40
  6. Step 6: Final answer
    x = 1,083,528.45

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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.