Home / 665,066.20-998,225.70-349,749.40

Finding the Fourth Proportional to 665,066.20, 998,225.70 and 349,749.40

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Solution

The fourth proportional to 665,066.20, 998,225.70 and 349,749.40 is: 524,953.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,066.20 : 998,225.70 = 349,749.40 : x
  2. Step 2: Convert to fraction form
    665,066.20/998,225.70 = 349,749.40/x
  3. Step 3: Cross multiply
    665,066.20x = 998,225.70 × 349,749.40
  4. Step 4: Simplify right side
    665,066.20x = 349,128,839,639.58
  5. Step 5: Solve for x
    x = 349,128,839,639.58/665,066.20
  6. Step 6: Final answer
    x = 524,953.52

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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.