Home / 942,170.84-1,300,131.74-512,441.73

Finding the Fourth Proportional to 942,170.84, 1,300,131.74 and 512,441.73

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Solution

The fourth proportional to 942,170.84, 1,300,131.74 and 512,441.73 is: 707,134.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,170.84 : 1,300,131.74 = 512,441.73 : x
  2. Step 2: Convert to fraction form
    942,170.84/1,300,131.74 = 512,441.73/x
  3. Step 3: Cross multiply
    942,170.84x = 1,300,131.74 × 512,441.73
  4. Step 4: Simplify right side
    942,170.84x = 666,241,755,511.30
  5. Step 5: Solve for x
    x = 666,241,755,511.30/942,170.84
  6. Step 6: Final answer
    x = 707,134.77

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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.