Home / 389,637.40-585,147.30-301,106.20

Finding the Fourth Proportional to 389,637.40, 585,147.30 and 301,106.20

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Solution

The fourth proportional to 389,637.40, 585,147.30 and 301,106.20 is: 452,193.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,637.40 : 585,147.30 = 301,106.20 : x
  2. Step 2: Convert to fraction form
    389,637.40/585,147.30 = 301,106.20/x
  3. Step 3: Cross multiply
    389,637.40x = 585,147.30 × 301,106.20
  4. Step 4: Simplify right side
    389,637.40x = 176,191,479,943.26
  5. Step 5: Solve for x
    x = 176,191,479,943.26/389,637.40
  6. Step 6: Final answer
    x = 452,193.45

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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.