Home / 1,241,156.90-1,861,698.30-342,653.46

Finding the Fourth Proportional to 1,241,156.90, 1,861,698.30 and 342,653.46

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Solution

The fourth proportional to 1,241,156.90, 1,861,698.30 and 342,653.46 is: 513,969.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,156.90 : 1,861,698.30 = 342,653.46 : x
  2. Step 2: Convert to fraction form
    1,241,156.90/1,861,698.30 = 342,653.46/x
  3. Step 3: Cross multiply
    1,241,156.90x = 1,861,698.30 × 342,653.46
  4. Step 4: Simplify right side
    1,241,156.90x = 637,917,363,971.12
  5. Step 5: Solve for x
    x = 637,917,363,971.12/1,241,156.90
  6. Step 6: Final answer
    x = 513,969.96

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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.