Home / 1,500,190.08-2,070,281.60-821,112

Finding the Fourth Proportional to 1,500,190.08, 2,070,281.60 and 821,112

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Solution

The fourth proportional to 1,500,190.08, 2,070,281.60 and 821,112 is: 1,133,145.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,190.08 : 2,070,281.60 = 821,112 : x
  2. Step 2: Convert to fraction form
    1,500,190.08/2,070,281.60 = 821,112/x
  3. Step 3: Cross multiply
    1,500,190.08x = 2,070,281.60 × 821,112
  4. Step 4: Simplify right side
    1,500,190.08x = 1,699,933,065,139.20
  5. Step 5: Solve for x
    x = 1,699,933,065,139.20/1,500,190.08
  6. Step 6: Final answer
    x = 1,133,145.12

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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.