Home / 1,252,188.72-1,728,031.32-708,328.80

Finding the Fourth Proportional to 1,252,188.72, 1,728,031.32 and 708,328.80

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Solution

The fourth proportional to 1,252,188.72, 1,728,031.32 and 708,328.80 is: 977,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,188.72 : 1,728,031.32 = 708,328.80 : x
  2. Step 2: Convert to fraction form
    1,252,188.72/1,728,031.32 = 708,328.80/x
  3. Step 3: Cross multiply
    1,252,188.72x = 1,728,031.32 × 708,328.80
  4. Step 4: Simplify right side
    1,252,188.72x = 1,224,014,351,258.02
  5. Step 5: Solve for x
    x = 1,224,014,351,258.02/1,252,188.72
  6. Step 6: Final answer
    x = 977,499.90

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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.