Home / 472,429.36-651,943.74-257,571.28

Finding the Fourth Proportional to 472,429.36, 651,943.74 and 257,571.28

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Solution

The fourth proportional to 472,429.36, 651,943.74 and 257,571.28 is: 355,443.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,429.36 : 651,943.74 = 257,571.28 : x
  2. Step 2: Convert to fraction form
    472,429.36/651,943.74 = 257,571.28/x
  3. Step 3: Cross multiply
    472,429.36x = 651,943.74 × 257,571.28
  4. Step 4: Simplify right side
    472,429.36x = 167,921,983,599.79
  5. Step 5: Solve for x
    x = 167,921,983,599.79/472,429.36
  6. Step 6: Final answer
    x = 355,443.58

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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.