Home / 1,298,880.65-1,792,457.90-725,920.80

Finding the Fourth Proportional to 1,298,880.65, 1,792,457.90 and 725,920.80

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Solution

The fourth proportional to 1,298,880.65, 1,792,457.90 and 725,920.80 is: 1,001,772.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,880.65 : 1,792,457.90 = 725,920.80 : x
  2. Step 2: Convert to fraction form
    1,298,880.65/1,792,457.90 = 725,920.80/x
  3. Step 3: Cross multiply
    1,298,880.65x = 1,792,457.90 × 725,920.80
  4. Step 4: Simplify right side
    1,298,880.65x = 1,301,182,469,104.72
  5. Step 5: Solve for x
    x = 1,301,182,469,104.72/1,298,880.65
  6. Step 6: Final answer
    x = 1,001,772.16

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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.