Home / 1,500,111.14-2,070,153.36-821,047.64

Finding the Fourth Proportional to 1,500,111.14, 2,070,153.36 and 821,047.64

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Solution

The fourth proportional to 1,500,111.14, 2,070,153.36 and 821,047.64 is: 1,133,045.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,111.14 : 2,070,153.36 = 821,047.64 : x
  2. Step 2: Convert to fraction form
    1,500,111.14/2,070,153.36 = 821,047.64/x
  3. Step 3: Cross multiply
    1,500,111.14x = 2,070,153.36 × 821,047.64
  4. Step 4: Simplify right side
    1,500,111.14x = 1,699,694,530,666.07
  5. Step 5: Solve for x
    x = 1,699,694,530,666.07/1,500,111.14
  6. Step 6: Final answer
    x = 1,133,045.74

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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.