Home / 658,890.60-988,044.30-303,721.80

Finding the Fourth Proportional to 658,890.60, 988,044.30 and 303,721.80

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Solution

The fourth proportional to 658,890.60, 988,044.30 and 303,721.80 is: 455,448.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,890.60 : 988,044.30 = 303,721.80 : x
  2. Step 2: Convert to fraction form
    658,890.60/988,044.30 = 303,721.80/x
  3. Step 3: Cross multiply
    658,890.60x = 988,044.30 × 303,721.80
  4. Step 4: Simplify right side
    658,890.60x = 300,090,593,275.74
  5. Step 5: Solve for x
    x = 300,090,593,275.74/658,890.60
  6. Step 6: Final answer
    x = 455,448.28

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1.5x scale

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.