Home / 942,017.45-1,299,971.84-512,288.42

Finding the Fourth Proportional to 942,017.45, 1,299,971.84 and 512,288.42

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Solution

The fourth proportional to 942,017.45, 1,299,971.84 and 512,288.42 is: 706,951.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,017.45 : 1,299,971.84 = 512,288.42 : x
  2. Step 2: Convert to fraction form
    942,017.45/1,299,971.84 = 512,288.42/x
  3. Step 3: Cross multiply
    942,017.45x = 1,299,971.84 × 512,288.42
  4. Step 4: Simplify right side
    942,017.45x = 665,960,510,896.79
  5. Step 5: Solve for x
    x = 665,960,510,896.79/942,017.45
  6. Step 6: Final answer
    x = 706,951.36

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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.