Home / 370,021.20-554,448.60-310,534.80

Finding the Fourth Proportional to 370,021.20, 554,448.60 and 310,534.80

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Solution

The fourth proportional to 370,021.20, 554,448.60 and 310,534.80 is: 465,312.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,021.20 : 554,448.60 = 310,534.80 : x
  2. Step 2: Convert to fraction form
    370,021.20/554,448.60 = 310,534.80/x
  3. Step 3: Cross multiply
    370,021.20x = 554,448.60 × 310,534.80
  4. Step 4: Simplify right side
    370,021.20x = 172,175,585,111.28
  5. Step 5: Solve for x
    x = 172,175,585,111.28/370,021.20
  6. Step 6: Final answer
    x = 465,312.76

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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.