Home / 1,520,020.07-2,278,742.36-666,444.81

Finding the Fourth Proportional to 1,520,020.07, 2,278,742.36 and 666,444.81

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Solution

The fourth proportional to 1,520,020.07, 2,278,742.36 and 666,444.81 is: 999,102.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,020.07 : 2,278,742.36 = 666,444.81 : x
  2. Step 2: Convert to fraction form
    1,520,020.07/2,278,742.36 = 666,444.81/x
  3. Step 3: Cross multiply
    1,520,020.07x = 2,278,742.36 × 666,444.81
  4. Step 4: Simplify right side
    1,520,020.07x = 1,518,656,015,816.93
  5. Step 5: Solve for x
    x = 1,518,656,015,816.93/1,520,020.07
  6. Step 6: Final answer
    x = 999,102.61

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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.