Home / 1,378,047.20-2,062,405.20-1,210,085.60

Finding the Fourth Proportional to 1,378,047.20, 2,062,405.20 and 1,210,085.60

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Solution

The fourth proportional to 1,378,047.20, 2,062,405.20 and 1,210,085.60 is: 1,811,031.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,047.20 : 2,062,405.20 = 1,210,085.60 : x
  2. Step 2: Convert to fraction form
    1,378,047.20/2,062,405.20 = 1,210,085.60/x
  3. Step 3: Cross multiply
    1,378,047.20x = 2,062,405.20 × 1,210,085.60
  4. Step 4: Simplify right side
    1,378,047.20x = 2,495,686,833,885.12
  5. Step 5: Solve for x
    x = 2,495,686,833,885.12/1,378,047.20
  6. Step 6: Final answer
    x = 1,811,031.46

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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.