Home / 1,100,672.16-1,651,172.31-390,640.74

Finding the Fourth Proportional to 1,100,672.16, 1,651,172.31 and 390,640.74

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Solution

The fourth proportional to 1,100,672.16, 1,651,172.31 and 390,640.74 is: 586,019.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,672.16 : 1,651,172.31 = 390,640.74 : x
  2. Step 2: Convert to fraction form
    1,100,672.16/1,651,172.31 = 390,640.74/x
  3. Step 3: Cross multiply
    1,100,672.16x = 1,651,172.31 × 390,640.74
  4. Step 4: Simplify right side
    1,100,672.16x = 645,015,173,045.91
  5. Step 5: Solve for x
    x = 645,015,173,045.91/1,100,672.16
  6. Step 6: Final answer
    x = 586,019.34

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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.