Home / 1,240,794.90-1,861,321.95-342,237.06

Finding the Fourth Proportional to 1,240,794.90, 1,861,321.95 and 342,237.06

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Solution

The fourth proportional to 1,240,794.90, 1,861,321.95 and 342,237.06 is: 513,391.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,794.90 : 1,861,321.95 = 342,237.06 : x
  2. Step 2: Convert to fraction form
    1,240,794.90/1,861,321.95 = 342,237.06/x
  3. Step 3: Cross multiply
    1,240,794.90x = 1,861,321.95 × 342,237.06
  4. Step 4: Simplify right side
    1,240,794.90x = 637,013,351,881.47
  5. Step 5: Solve for x
    x = 637,013,351,881.47/1,240,794.90
  6. Step 6: Final answer
    x = 513,391.34

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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.