Home / 1,490,820.78-2,057,323.95-811,755.66

Finding the Fourth Proportional to 1,490,820.78, 2,057,323.95 and 811,755.66

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Solution

The fourth proportional to 1,490,820.78, 2,057,323.95 and 811,755.66 is: 1,120,218.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,820.78 : 2,057,323.95 = 811,755.66 : x
  2. Step 2: Convert to fraction form
    1,490,820.78/2,057,323.95 = 811,755.66/x
  3. Step 3: Cross multiply
    1,490,820.78x = 2,057,323.95 × 811,755.66
  4. Step 4: Simplify right side
    1,490,820.78x = 1,670,044,360,866.06
  5. Step 5: Solve for x
    x = 1,670,044,360,866.06/1,490,820.78
  6. Step 6: Final answer
    x = 1,120,218.06

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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.