Home / 1,520,032.69-2,278,761.28-666,457.45

Finding the Fourth Proportional to 1,520,032.69, 2,278,761.28 and 666,457.45

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Solution

The fourth proportional to 1,520,032.69, 2,278,761.28 and 666,457.45 is: 999,121.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,032.69 : 2,278,761.28 = 666,457.45 : x
  2. Step 2: Convert to fraction form
    1,520,032.69/2,278,761.28 = 666,457.45/x
  3. Step 3: Cross multiply
    1,520,032.69x = 2,278,761.28 × 666,457.45
  4. Step 4: Simplify right side
    1,520,032.69x = 1,518,697,431,827.54
  5. Step 5: Solve for x
    x = 1,518,697,431,827.54/1,520,032.69
  6. Step 6: Final answer
    x = 999,121.56

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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.