Home / 1,175,971.80-1,763,951.04-428,017.80

Finding the Fourth Proportional to 1,175,971.80, 1,763,951.04 and 428,017.80

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Solution

The fourth proportional to 1,175,971.80, 1,763,951.04 and 428,017.80 is: 642,024.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,971.80 : 1,763,951.04 = 428,017.80 : x
  2. Step 2: Convert to fraction form
    1,175,971.80/1,763,951.04 = 428,017.80/x
  3. Step 3: Cross multiply
    1,175,971.80x = 1,763,951.04 × 428,017.80
  4. Step 4: Simplify right side
    1,175,971.80x = 755,002,443,448.51
  5. Step 5: Solve for x
    x = 755,002,443,448.51/1,175,971.80
  6. Step 6: Final answer
    x = 642,024.28

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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.