Home / 1,422,864.18-1,963,568.01-778,270.20

Finding the Fourth Proportional to 1,422,864.18, 1,963,568.01 and 778,270.20

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Solution

The fourth proportional to 1,422,864.18, 1,963,568.01 and 778,270.20 is: 1,074,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,864.18 : 1,963,568.01 = 778,270.20 : x
  2. Step 2: Convert to fraction form
    1,422,864.18/1,963,568.01 = 778,270.20/x
  3. Step 3: Cross multiply
    1,422,864.18x = 1,963,568.01 × 778,270.20
  4. Step 4: Simplify right side
    1,422,864.18x = 1,528,186,467,856.30
  5. Step 5: Solve for x
    x = 1,528,186,467,856.30/1,422,864.18
  6. Step 6: Final answer
    x = 1,074,021.32

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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.