Home / 1,279,660.57-1,918,014.47-480,432.35

Finding the Fourth Proportional to 1,279,660.57, 1,918,014.47 and 480,432.35

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Solution

The fourth proportional to 1,279,660.57, 1,918,014.47 and 480,432.35 is: 720,094.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,660.57 : 1,918,014.47 = 480,432.35 : x
  2. Step 2: Convert to fraction form
    1,279,660.57/1,918,014.47 = 480,432.35/x
  3. Step 3: Cross multiply
    1,279,660.57x = 1,918,014.47 × 480,432.35
  4. Step 4: Simplify right side
    1,279,660.57x = 921,476,199,156.11
  5. Step 5: Solve for x
    x = 921,476,199,156.11/1,279,660.57
  6. Step 6: Final answer
    x = 720,094.23

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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.