Home / 1,861,146.60-2,791,719.90-1,223,417.40

Finding the Fourth Proportional to 1,861,146.60, 2,791,719.90 and 1,223,417.40

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Solution

The fourth proportional to 1,861,146.60, 2,791,719.90 and 1,223,417.40 is: 1,835,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,146.60 : 2,791,719.90 = 1,223,417.40 : x
  2. Step 2: Convert to fraction form
    1,861,146.60/2,791,719.90 = 1,223,417.40/x
  3. Step 3: Cross multiply
    1,861,146.60x = 2,791,719.90 × 1,223,417.40
  4. Step 4: Simplify right side
    1,861,146.60x = 3,415,438,701,586.26
  5. Step 5: Solve for x
    x = 3,415,438,701,586.26/1,861,146.60
  6. Step 6: Final answer
    x = 1,835,126.10

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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.