Home / 1,110,389.32-1,532,223.16-645,170.68

Finding the Fourth Proportional to 1,110,389.32, 1,532,223.16 and 645,170.68

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Solution

The fourth proportional to 1,110,389.32, 1,532,223.16 and 645,170.68 is: 890,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,389.32 : 1,532,223.16 = 645,170.68 : x
  2. Step 2: Convert to fraction form
    1,110,389.32/1,532,223.16 = 645,170.68/x
  3. Step 3: Cross multiply
    1,110,389.32x = 1,532,223.16 × 645,170.68
  4. Step 4: Simplify right side
    1,110,389.32x = 988,545,458,048.95
  5. Step 5: Solve for x
    x = 988,545,458,048.95/1,110,389.32
  6. Step 6: Final answer
    x = 890,269.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.