Home / 434,862.80-651,419.40-293,145.20

Finding the Fourth Proportional to 434,862.80, 651,419.40 and 293,145.20

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Solution

The fourth proportional to 434,862.80, 651,419.40 and 293,145.20 is: 439,128.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,862.80 : 651,419.40 = 293,145.20 : x
  2. Step 2: Convert to fraction form
    434,862.80/651,419.40 = 293,145.20/x
  3. Step 3: Cross multiply
    434,862.80x = 651,419.40 × 293,145.20
  4. Step 4: Simplify right side
    434,862.80x = 190,960,470,296.88
  5. Step 5: Solve for x
    x = 190,960,470,296.88/434,862.80
  6. Step 6: Final answer
    x = 439,128.09

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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.