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Finding the Fourth Proportional to 671,053.44, 926,079.30 and 384,628.80

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Solution

The fourth proportional to 671,053.44, 926,079.30 and 384,628.80 is: 530,802.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,053.44 : 926,079.30 = 384,628.80 : x
  2. Step 2: Convert to fraction form
    671,053.44/926,079.30 = 384,628.80/x
  3. Step 3: Cross multiply
    671,053.44x = 926,079.30 × 384,628.80
  4. Step 4: Simplify right side
    671,053.44x = 356,196,769,863.84
  5. Step 5: Solve for x
    x = 356,196,769,863.84/671,053.44
  6. Step 6: Final answer
    x = 530,802.39

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1.5x scale

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.