Home / 1,230,637.81-1,698,270.30-714,439.60

Finding the Fourth Proportional to 1,230,637.81, 1,698,270.30 and 714,439.60

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Solution

The fourth proportional to 1,230,637.81, 1,698,270.30 and 714,439.60 is: 985,920.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,637.81 : 1,698,270.30 = 714,439.60 : x
  2. Step 2: Convert to fraction form
    1,230,637.81/1,698,270.30 = 714,439.60/x
  3. Step 3: Cross multiply
    1,230,637.81x = 1,698,270.30 × 714,439.60
  4. Step 4: Simplify right side
    1,230,637.81x = 1,213,311,553,823.88
  5. Step 5: Solve for x
    x = 1,213,311,553,823.88/1,230,637.81
  6. Step 6: Final answer
    x = 985,920.91

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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.