Home / 648,119.80-971,013.30-554,807.80

Finding the Fourth Proportional to 648,119.80, 971,013.30 and 554,807.80

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Solution

The fourth proportional to 648,119.80, 971,013.30 and 554,807.80 is: 831,213.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,119.80 : 971,013.30 = 554,807.80 : x
  2. Step 2: Convert to fraction form
    648,119.80/971,013.30 = 554,807.80/x
  3. Step 3: Cross multiply
    648,119.80x = 971,013.30 × 554,807.80
  4. Step 4: Simplify right side
    648,119.80x = 538,725,752,743.74
  5. Step 5: Solve for x
    x = 538,725,752,743.74/648,119.80
  6. Step 6: Final answer
    x = 831,213.23

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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.