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Finding the Fourth Proportional to 716,271.04, 988,480.02 and 394,006.06

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Solution

The fourth proportional to 716,271.04, 988,480.02 and 394,006.06 is: 543,742.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,271.04 : 988,480.02 = 394,006.06 : x
  2. Step 2: Convert to fraction form
    716,271.04/988,480.02 = 394,006.06/x
  3. Step 3: Cross multiply
    716,271.04x = 988,480.02 × 394,006.06
  4. Step 4: Simplify right side
    716,271.04x = 389,467,118,068.92
  5. Step 5: Solve for x
    x = 389,467,118,068.92/716,271.04
  6. Step 6: Final answer
    x = 543,742.66

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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.