Home / 1,671,345.90-2,308,620.89-1,382,125.70

Finding the Fourth Proportional to 1,671,345.90, 2,308,620.89 and 1,382,125.70

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Solution

The fourth proportional to 1,671,345.90, 2,308,620.89 and 1,382,125.70 is: 1,909,122.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671,345.90 : 2,308,620.89 = 1,382,125.70 : x
  2. Step 2: Convert to fraction form
    1,671,345.90/2,308,620.89 = 1,382,125.70/x
  3. Step 3: Cross multiply
    1,671,345.90x = 2,308,620.89 × 1,382,125.70
  4. Step 4: Simplify right side
    1,671,345.90x = 3,190,804,272,852.74
  5. Step 5: Solve for x
    x = 3,190,804,272,852.74/1,671,345.90
  6. Step 6: Final answer
    x = 1,909,122.63

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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.