Home / 1,186,154.40-1,779,231.60-1,128,093.60

Finding the Fourth Proportional to 1,186,154.40, 1,779,231.60 and 1,128,093.60

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Solution

The fourth proportional to 1,186,154.40, 1,779,231.60 and 1,128,093.60 is: 1,692,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,154.40 : 1,779,231.60 = 1,128,093.60 : x
  2. Step 2: Convert to fraction form
    1,186,154.40/1,779,231.60 = 1,128,093.60/x
  3. Step 3: Cross multiply
    1,186,154.40x = 1,779,231.60 × 1,128,093.60
  4. Step 4: Simplify right side
    1,186,154.40x = 2,007,139,780,877.76
  5. Step 5: Solve for x
    x = 2,007,139,780,877.76/1,186,154.40
  6. Step 6: Final answer
    x = 1,692,140.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.