Home / 1,422,271.80-1,964,319.42-1,314,655.02

Finding the Fourth Proportional to 1,422,271.80, 1,964,319.42 and 1,314,655.02

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Solution

The fourth proportional to 1,422,271.80, 1,964,319.42 and 1,314,655.02 is: 1,815,688.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,271.80 : 1,964,319.42 = 1,314,655.02 : x
  2. Step 2: Convert to fraction form
    1,422,271.80/1,964,319.42 = 1,314,655.02/x
  3. Step 3: Cross multiply
    1,422,271.80x = 1,964,319.42 × 1,314,655.02
  4. Step 4: Simplify right side
    1,422,271.80x = 2,582,402,386,386.49
  5. Step 5: Solve for x
    x = 2,582,402,386,386.49/1,422,271.80
  6. Step 6: Final answer
    x = 1,815,688.38

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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.