Home / 805,734.40-1,207,143.60-384,080.80

Finding the Fourth Proportional to 805,734.40, 1,207,143.60 and 384,080.80

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Solution

The fourth proportional to 805,734.40, 1,207,143.60 and 384,080.80 is: 575,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,734.40 : 1,207,143.60 = 384,080.80 : x
  2. Step 2: Convert to fraction form
    805,734.40/1,207,143.60 = 384,080.80/x
  3. Step 3: Cross multiply
    805,734.40x = 1,207,143.60 × 384,080.80
  4. Step 4: Simplify right side
    805,734.40x = 463,640,679,602.88
  5. Step 5: Solve for x
    x = 463,640,679,602.88/805,734.40
  6. Step 6: Final answer
    x = 575,426.19

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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.