Home / 1,080,084.95-1,620,121.57-440,386.21

Finding the Fourth Proportional to 1,080,084.95, 1,620,121.57 and 440,386.21

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Solution

The fourth proportional to 1,080,084.95, 1,620,121.57 and 440,386.21 is: 660,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,084.95 : 1,620,121.57 = 440,386.21 : x
  2. Step 2: Convert to fraction form
    1,080,084.95/1,620,121.57 = 440,386.21/x
  3. Step 3: Cross multiply
    1,080,084.95x = 1,620,121.57 × 440,386.21
  4. Step 4: Simplify right side
    1,080,084.95x = 713,479,197,951.55
  5. Step 5: Solve for x
    x = 713,479,197,951.55/1,080,084.95
  6. Step 6: Final answer
    x = 660,576.93

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1.5x scale

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.