Home / 1,020,874.32-1,531,194.84-272,978.64

Finding the Fourth Proportional to 1,020,874.32, 1,531,194.84 and 272,978.64

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Solution

The fourth proportional to 1,020,874.32, 1,531,194.84 and 272,978.64 is: 409,436.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,874.32 : 1,531,194.84 = 272,978.64 : x
  2. Step 2: Convert to fraction form
    1,020,874.32/1,531,194.84 = 272,978.64/x
  3. Step 3: Cross multiply
    1,020,874.32x = 1,531,194.84 × 272,978.64
  4. Step 4: Simplify right side
    1,020,874.32x = 417,983,484,998.22
  5. Step 5: Solve for x
    x = 417,983,484,998.22/1,020,874.32
  6. Step 6: Final answer
    x = 409,436.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.