Home / 1,287,031.16-1,776,103.21-714,069.96

Finding the Fourth Proportional to 1,287,031.16, 1,776,103.21 and 714,069.96

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Solution

The fourth proportional to 1,287,031.16, 1,776,103.21 and 714,069.96 is: 985,416.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,031.16 : 1,776,103.21 = 714,069.96 : x
  2. Step 2: Convert to fraction form
    1,287,031.16/1,776,103.21 = 714,069.96/x
  3. Step 3: Cross multiply
    1,287,031.16x = 1,776,103.21 × 714,069.96
  4. Step 4: Simplify right side
    1,287,031.16x = 1,268,261,949,013.16
  5. Step 5: Solve for x
    x = 1,268,261,949,013.16/1,287,031.16
  6. Step 6: Final answer
    x = 985,416.67

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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.