Home / 1,422,958.46-1,963,656.88-778,373.01

Finding the Fourth Proportional to 1,422,958.46, 1,963,656.88 and 778,373.01

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Solution

The fourth proportional to 1,422,958.46, 1,963,656.88 and 778,373.01 is: 1,074,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,958.46 : 1,963,656.88 = 778,373.01 : x
  2. Step 2: Convert to fraction form
    1,422,958.46/1,963,656.88 = 778,373.01/x
  3. Step 3: Cross multiply
    1,422,958.46x = 1,963,656.88 × 778,373.01
  4. Step 4: Simplify right side
    1,422,958.46x = 1,528,457,514,346.88
  5. Step 5: Solve for x
    x = 1,528,457,514,346.88/1,422,958.46
  6. Step 6: Final answer
    x = 1,074,140.65

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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.