Home / 1,425,223.25-1,966,783.77-771,843.96

Finding the Fourth Proportional to 1,425,223.25, 1,966,783.77 and 771,843.96

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Solution

The fourth proportional to 1,425,223.25, 1,966,783.77 and 771,843.96 is: 1,065,131.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,223.25 : 1,966,783.77 = 771,843.96 : x
  2. Step 2: Convert to fraction form
    1,425,223.25/1,966,783.77 = 771,843.96/x
  3. Step 3: Cross multiply
    1,425,223.25x = 1,966,783.77 × 771,843.96
  4. Step 4: Simplify right side
    1,425,223.25x = 1,518,050,173,500.53
  5. Step 5: Solve for x
    x = 1,518,050,173,500.53/1,425,223.25
  6. Step 6: Final answer
    x = 1,065,131.50

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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.