Home / 484,931.47-669,205.19-281,100.51

Finding the Fourth Proportional to 484,931.47, 669,205.19 and 281,100.51

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Solution

The fourth proportional to 484,931.47, 669,205.19 and 281,100.51 is: 387,918.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,931.47 : 669,205.19 = 281,100.51 : x
  2. Step 2: Convert to fraction form
    484,931.47/669,205.19 = 281,100.51/x
  3. Step 3: Cross multiply
    484,931.47x = 669,205.19 × 281,100.51
  4. Step 4: Simplify right side
    484,931.47x = 188,113,918,798.14
  5. Step 5: Solve for x
    x = 188,113,918,798.14/484,931.47
  6. Step 6: Final answer
    x = 387,918.56

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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.