Home / 1,287,597.90-1,776,968.13-714,638.10

Finding the Fourth Proportional to 1,287,597.90, 1,776,968.13 and 714,638.10

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Solution

The fourth proportional to 1,287,597.90, 1,776,968.13 and 714,638.10 is: 986,246.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,597.90 : 1,776,968.13 = 714,638.10 : x
  2. Step 2: Convert to fraction form
    1,287,597.90/1,776,968.13 = 714,638.10/x
  3. Step 3: Cross multiply
    1,287,597.90x = 1,776,968.13 × 714,638.10
  4. Step 4: Simplify right side
    1,287,597.90x = 1,269,889,128,183.75
  5. Step 5: Solve for x
    x = 1,269,889,128,183.75/1,287,597.90
  6. Step 6: Final answer
    x = 986,246.66

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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.