Home / 484,130.22-668,052.90-280,140.45

Finding the Fourth Proportional to 484,130.22, 668,052.90 and 280,140.45

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Solution

The fourth proportional to 484,130.22, 668,052.90 and 280,140.45 is: 386,566.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,130.22 : 668,052.90 = 280,140.45 : x
  2. Step 2: Convert to fraction form
    484,130.22/668,052.90 = 280,140.45/x
  3. Step 3: Cross multiply
    484,130.22x = 668,052.90 × 280,140.45
  4. Step 4: Simplify right side
    484,130.22x = 187,148,640,029.81
  5. Step 5: Solve for x
    x = 187,148,640,029.81/484,130.22
  6. Step 6: Final answer
    x = 386,566.74

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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.