Home / 469,913.76-648,479.36-255,053.84

Finding the Fourth Proportional to 469,913.76, 648,479.36 and 255,053.84

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Solution

The fourth proportional to 469,913.76, 648,479.36 and 255,053.84 is: 351,973.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,913.76 : 648,479.36 = 255,053.84 : x
  2. Step 2: Convert to fraction form
    469,913.76/648,479.36 = 255,053.84/x
  3. Step 3: Cross multiply
    469,913.76x = 648,479.36 × 255,053.84
  4. Step 4: Simplify right side
    469,913.76x = 165,397,146,411.08
  5. Step 5: Solve for x
    x = 165,397,146,411.08/469,913.76
  6. Step 6: Final answer
    x = 351,973.41

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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.