Home / 1,319,422.70-1,820,780.10-730,709.93

Finding the Fourth Proportional to 1,319,422.70, 1,820,780.10 and 730,709.93

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Solution

The fourth proportional to 1,319,422.70, 1,820,780.10 and 730,709.93 is: 1,008,366.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,422.70 : 1,820,780.10 = 730,709.93 : x
  2. Step 2: Convert to fraction form
    1,319,422.70/1,820,780.10 = 730,709.93/x
  3. Step 3: Cross multiply
    1,319,422.70x = 1,820,780.10 × 730,709.93
  4. Step 4: Simplify right side
    1,319,422.70x = 1,330,462,099,416.39
  5. Step 5: Solve for x
    x = 1,330,462,099,416.39/1,319,422.70
  6. Step 6: Final answer
    x = 1,008,366.84

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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.