Home / 1,239,554.25-1,710,669.56-688,298.40

Finding the Fourth Proportional to 1,239,554.25, 1,710,669.56 and 688,298.40

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Solution

The fourth proportional to 1,239,554.25, 1,710,669.56 and 688,298.40 is: 949,898.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,554.25 : 1,710,669.56 = 688,298.40 : x
  2. Step 2: Convert to fraction form
    1,239,554.25/1,710,669.56 = 688,298.40/x
  3. Step 3: Cross multiply
    1,239,554.25x = 1,710,669.56 × 688,298.40
  4. Step 4: Simplify right side
    1,239,554.25x = 1,177,451,121,076.70
  5. Step 5: Solve for x
    x = 1,177,451,121,076.70/1,239,554.25
  6. Step 6: Final answer
    x = 949,898.82

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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.