Home / 685,929.36-946,589.15-380,012.24

Finding the Fourth Proportional to 685,929.36, 946,589.15 and 380,012.24

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Solution

The fourth proportional to 685,929.36, 946,589.15 and 380,012.24 is: 524,420.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,929.36 : 946,589.15 = 380,012.24 : x
  2. Step 2: Convert to fraction form
    685,929.36/946,589.15 = 380,012.24/x
  3. Step 3: Cross multiply
    685,929.36x = 946,589.15 × 380,012.24
  4. Step 4: Simplify right side
    685,929.36x = 359,715,466,567.70
  5. Step 5: Solve for x
    x = 359,715,466,567.70/685,929.36
  6. Step 6: Final answer
    x = 524,420.57

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1.5x scale

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.