Home / 673,731.47-929,661.20-401,831.28

Finding the Fourth Proportional to 673,731.47, 929,661.20 and 401,831.28

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Solution

The fourth proportional to 673,731.47, 929,661.20 and 401,831.28 is: 554,474.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,731.47 : 929,661.20 = 401,831.28 : x
  2. Step 2: Convert to fraction form
    673,731.47/929,661.20 = 401,831.28/x
  3. Step 3: Cross multiply
    673,731.47x = 929,661.20 × 401,831.28
  4. Step 4: Simplify right side
    673,731.47x = 373,566,949,460.05
  5. Step 5: Solve for x
    x = 373,566,949,460.05/673,731.47
  6. Step 6: Final answer
    x = 554,474.54

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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.