Home / 1,520,020.40-2,278,742.88-666,445.16

Finding the Fourth Proportional to 1,520,020.40, 2,278,742.88 and 666,445.16

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Solution

The fourth proportional to 1,520,020.40, 2,278,742.88 and 666,445.16 is: 999,103.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,020.40 : 2,278,742.88 = 666,445.16 : x
  2. Step 2: Convert to fraction form
    1,520,020.40/2,278,742.88 = 666,445.16/x
  3. Step 3: Cross multiply
    1,520,020.40x = 2,278,742.88 × 666,445.16
  4. Step 4: Simplify right side
    1,520,020.40x = 1,518,657,163,260.46
  5. Step 5: Solve for x
    x = 1,518,657,163,260.46/1,520,020.40
  6. Step 6: Final answer
    x = 999,103.15

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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.