Home / 1,162,284.86-1,603,982.76-638,989.07

Finding the Fourth Proportional to 1,162,284.86, 1,603,982.76 and 638,989.07

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Solution

The fourth proportional to 1,162,284.86, 1,603,982.76 and 638,989.07 is: 881,821.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162,284.86 : 1,603,982.76 = 638,989.07 : x
  2. Step 2: Convert to fraction form
    1,162,284.86/1,603,982.76 = 638,989.07/x
  3. Step 3: Cross multiply
    1,162,284.86x = 1,603,982.76 × 638,989.07
  4. Step 4: Simplify right side
    1,162,284.86x = 1,024,927,450,714.71
  5. Step 5: Solve for x
    x = 1,024,927,450,714.71/1,162,284.86
  6. Step 6: Final answer
    x = 881,821.22

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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.