Home / 803,120.03-1,108,119.80-480,707.63

Finding the Fourth Proportional to 803,120.03, 1,108,119.80 and 480,707.63

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Solution

The fourth proportional to 803,120.03, 1,108,119.80 and 480,707.63 is: 663,265.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,120.03 : 1,108,119.80 = 480,707.63 : x
  2. Step 2: Convert to fraction form
    803,120.03/1,108,119.80 = 480,707.63/x
  3. Step 3: Cross multiply
    803,120.03x = 1,108,119.80 × 480,707.63
  4. Step 4: Simplify right side
    803,120.03x = 532,681,640,410.54
  5. Step 5: Solve for x
    x = 532,681,640,410.54/803,120.03
  6. Step 6: Final answer
    x = 663,265.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.