Home / 739,971.88-1,021,162.02-400,440.16

Finding the Fourth Proportional to 739,971.88, 1,021,162.02 and 400,440.16

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Solution

The fourth proportional to 739,971.88, 1,021,162.02 and 400,440.16 is: 552,607.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,971.88 : 1,021,162.02 = 400,440.16 : x
  2. Step 2: Convert to fraction form
    739,971.88/1,021,162.02 = 400,440.16/x
  3. Step 3: Cross multiply
    739,971.88x = 1,021,162.02 × 400,440.16
  4. Step 4: Simplify right side
    739,971.88x = 408,914,282,674.72
  5. Step 5: Solve for x
    x = 408,914,282,674.72/739,971.88
  6. Step 6: Final answer
    x = 552,607.87

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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.