Home / 469,869.42-648,420.21-255,009.45

Finding the Fourth Proportional to 469,869.42, 648,420.21 and 255,009.45

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Solution

The fourth proportional to 469,869.42, 648,420.21 and 255,009.45 is: 351,913.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,869.42 : 648,420.21 = 255,009.45 : x
  2. Step 2: Convert to fraction form
    469,869.42/648,420.21 = 255,009.45/x
  3. Step 3: Cross multiply
    469,869.42x = 648,420.21 × 255,009.45
  4. Step 4: Simplify right side
    469,869.42x = 165,353,281,120.99
  5. Step 5: Solve for x
    x = 165,353,281,120.99/469,869.42
  6. Step 6: Final answer
    x = 351,913.26

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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.