Home / 1,533,431.04-2,116,149.18-845,128.12

Finding the Fourth Proportional to 1,533,431.04, 2,116,149.18 and 845,128.12

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Solution

The fourth proportional to 1,533,431.04, 2,116,149.18 and 845,128.12 is: 1,166,284.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533,431.04 : 2,116,149.18 = 845,128.12 : x
  2. Step 2: Convert to fraction form
    1,533,431.04/2,116,149.18 = 845,128.12/x
  3. Step 3: Cross multiply
    1,533,431.04x = 2,116,149.18 × 845,128.12
  4. Step 4: Simplify right side
    1,533,431.04x = 1,788,417,178,132.94
  5. Step 5: Solve for x
    x = 1,788,417,178,132.94/1,533,431.04
  6. Step 6: Final answer
    x = 1,166,284.71

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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.