Home / 1,168,784.32-1,612,947.54-645,493.36

Finding the Fourth Proportional to 1,168,784.32, 1,612,947.54 and 645,493.36

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Solution

The fourth proportional to 1,168,784.32, 1,612,947.54 and 645,493.36 is: 890,794.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,784.32 : 1,612,947.54 = 645,493.36 : x
  2. Step 2: Convert to fraction form
    1,168,784.32/1,612,947.54 = 645,493.36/x
  3. Step 3: Cross multiply
    1,168,784.32x = 1,612,947.54 × 645,493.36
  4. Step 4: Simplify right side
    1,168,784.32x = 1,041,146,927,098.33
  5. Step 5: Solve for x
    x = 1,041,146,927,098.33/1,168,784.32
  6. Step 6: Final answer
    x = 890,794.74

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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.