Home / 1,292,116.84-1,783,103.38-719,157.20

Finding the Fourth Proportional to 1,292,116.84, 1,783,103.38 and 719,157.20

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Solution

The fourth proportional to 1,292,116.84, 1,783,103.38 and 719,157.20 is: 992,427.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,116.84 : 1,783,103.38 = 719,157.20 : x
  2. Step 2: Convert to fraction form
    1,292,116.84/1,783,103.38 = 719,157.20/x
  3. Step 3: Cross multiply
    1,292,116.84x = 1,783,103.38 × 719,157.20
  4. Step 4: Simplify right side
    1,292,116.84x = 1,282,331,634,071.34
  5. Step 5: Solve for x
    x = 1,282,331,634,071.34/1,292,116.84
  6. Step 6: Final answer
    x = 992,427.00

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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.