Home / 1,421,810.12-2,132,649.48-356,828.60

Finding the Fourth Proportional to 1,421,810.12, 2,132,649.48 and 356,828.60

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Solution

The fourth proportional to 1,421,810.12, 2,132,649.48 and 356,828.60 is: 535,226.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,810.12 : 2,132,649.48 = 356,828.60 : x
  2. Step 2: Convert to fraction form
    1,421,810.12/2,132,649.48 = 356,828.60/x
  3. Step 3: Cross multiply
    1,421,810.12x = 2,132,649.48 × 356,828.60
  4. Step 4: Simplify right side
    1,421,810.12x = 760,990,328,239.13
  5. Step 5: Solve for x
    x = 760,990,328,239.13/1,421,810.12
  6. Step 6: Final answer
    x = 535,226.41

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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.