Home / 1,312,474.84-1,970,848.13-810,228.47

Finding the Fourth Proportional to 1,312,474.84, 1,970,848.13 and 810,228.47

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Solution

The fourth proportional to 1,312,474.84, 1,970,848.13 and 810,228.47 is: 1,216,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,474.84 : 1,970,848.13 = 810,228.47 : x
  2. Step 2: Convert to fraction form
    1,312,474.84/1,970,848.13 = 810,228.47/x
  3. Step 3: Cross multiply
    1,312,474.84x = 1,970,848.13 × 810,228.47
  4. Step 4: Simplify right side
    1,312,474.84x = 1,596,837,251,066.88
  5. Step 5: Solve for x
    x = 1,596,837,251,066.88/1,312,474.84
  6. Step 6: Final answer
    x = 1,216,661.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.