Home / 1,247,731.68-1,871,929.10-394,818.48

Finding the Fourth Proportional to 1,247,731.68, 1,871,929.10 and 394,818.48

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Solution

The fourth proportional to 1,247,731.68, 1,871,929.10 and 394,818.48 is: 592,332.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,731.68 : 1,871,929.10 = 394,818.48 : x
  2. Step 2: Convert to fraction form
    1,247,731.68/1,871,929.10 = 394,818.48/x
  3. Step 3: Cross multiply
    1,247,731.68x = 1,871,929.10 × 394,818.48
  4. Step 4: Simplify right side
    1,247,731.68x = 739,072,201,929.77
  5. Step 5: Solve for x
    x = 739,072,201,929.77/1,247,731.68
  6. Step 6: Final answer
    x = 592,332.64

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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.