Home / 1,422,984.16-1,963,764.98-778,389.62

Finding the Fourth Proportional to 1,422,984.16, 1,963,764.98 and 778,389.62

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Solution

The fourth proportional to 1,422,984.16, 1,963,764.98 and 778,389.62 is: 1,074,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,984.16 : 1,963,764.98 = 778,389.62 : x
  2. Step 2: Convert to fraction form
    1,422,984.16/1,963,764.98 = 778,389.62/x
  3. Step 3: Cross multiply
    1,422,984.16x = 1,963,764.98 × 778,389.62
  4. Step 4: Simplify right side
    1,422,984.16x = 1,528,574,276,551.51
  5. Step 5: Solve for x
    x = 1,528,574,276,551.51/1,422,984.16
  6. Step 6: Final answer
    x = 1,074,203.30

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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.