Home / 2,157,647.28-2,977,452.36-1,239,230.40

Finding the Fourth Proportional to 2,157,647.28, 2,977,452.36 and 1,239,230.40

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Solution

The fourth proportional to 2,157,647.28, 2,977,452.36 and 1,239,230.40 is: 1,710,080.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,647.28 : 2,977,452.36 = 1,239,230.40 : x
  2. Step 2: Convert to fraction form
    2,157,647.28/2,977,452.36 = 1,239,230.40/x
  3. Step 3: Cross multiply
    2,157,647.28x = 2,977,452.36 × 1,239,230.40
  4. Step 4: Simplify right side
    2,157,647.28x = 3,689,749,479,063.74
  5. Step 5: Solve for x
    x = 3,689,749,479,063.74/2,157,647.28
  6. Step 6: Final answer
    x = 1,710,080.01

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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.