Home / 1,123,415.80-1,685,342.40-483,718.30

Finding the Fourth Proportional to 1,123,415.80, 1,685,342.40 and 483,718.30

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Solution

The fourth proportional to 1,123,415.80, 1,685,342.40 and 483,718.30 is: 725,671.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,415.80 : 1,685,342.40 = 483,718.30 : x
  2. Step 2: Convert to fraction form
    1,123,415.80/1,685,342.40 = 483,718.30/x
  3. Step 3: Cross multiply
    1,123,415.80x = 1,685,342.40 × 483,718.30
  4. Step 4: Simplify right side
    1,123,415.80x = 815,230,960,645.92
  5. Step 5: Solve for x
    x = 815,230,960,645.92/1,123,415.80
  6. Step 6: Final answer
    x = 725,671.62

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1.5x scale

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.