Home / 1,197,812.40-1,796,718.60-860,139.60

Finding the Fourth Proportional to 1,197,812.40, 1,796,718.60 and 860,139.60

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Solution

The fourth proportional to 1,197,812.40, 1,796,718.60 and 860,139.60 is: 1,290,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,812.40 : 1,796,718.60 = 860,139.60 : x
  2. Step 2: Convert to fraction form
    1,197,812.40/1,796,718.60 = 860,139.60/x
  3. Step 3: Cross multiply
    1,197,812.40x = 1,796,718.60 × 860,139.60
  4. Step 4: Simplify right side
    1,197,812.40x = 1,545,428,817,916.56
  5. Step 5: Solve for x
    x = 1,545,428,817,916.56/1,197,812.40
  6. Step 6: Final answer
    x = 1,290,209.40

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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.