Home / 839,125.37-1,158,076.64-512,420.38

Finding the Fourth Proportional to 839,125.37, 1,158,076.64 and 512,420.38

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Solution

The fourth proportional to 839,125.37, 1,158,076.64 and 512,420.38 is: 707,191.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,125.37 : 1,158,076.64 = 512,420.38 : x
  2. Step 2: Convert to fraction form
    839,125.37/1,158,076.64 = 512,420.38/x
  3. Step 3: Cross multiply
    839,125.37x = 1,158,076.64 × 512,420.38
  4. Step 4: Simplify right side
    839,125.37x = 593,422,070,323.78
  5. Step 5: Solve for x
    x = 593,422,070,323.78/839,125.37
  6. Step 6: Final answer
    x = 707,191.19

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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.