Home / 916,941.80-1,375,412.70-717,876.20

Finding the Fourth Proportional to 916,941.80, 1,375,412.70 and 717,876.20

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Solution

The fourth proportional to 916,941.80, 1,375,412.70 and 717,876.20 is: 1,076,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,941.80 : 1,375,412.70 = 717,876.20 : x
  2. Step 2: Convert to fraction form
    916,941.80/1,375,412.70 = 717,876.20/x
  3. Step 3: Cross multiply
    916,941.80x = 1,375,412.70 × 717,876.20
  4. Step 4: Simplify right side
    916,941.80x = 987,376,042,507.74
  5. Step 5: Solve for x
    x = 987,376,042,507.74/916,941.80
  6. Step 6: Final answer
    x = 1,076,814.30

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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.