Home / 1,429,607.37-2,154,451.32-1,287,630.57

Finding the Fourth Proportional to 1,429,607.37, 2,154,451.32 and 1,287,630.57

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Solution

The fourth proportional to 1,429,607.37, 2,154,451.32 and 1,287,630.57 is: 1,940,489.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,607.37 : 2,154,451.32 = 1,287,630.57 : x
  2. Step 2: Convert to fraction form
    1,429,607.37/2,154,451.32 = 1,287,630.57/x
  3. Step 3: Cross multiply
    1,429,607.37x = 2,154,451.32 × 1,287,630.57
  4. Step 4: Simplify right side
    1,429,607.37x = 2,774,137,381,208.85
  5. Step 5: Solve for x
    x = 2,774,137,381,208.85/1,429,607.37
  6. Step 6: Final answer
    x = 1,940,489.00

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.