Home / 1,345,577.12-2,018,021.75-398,726.40

Finding the Fourth Proportional to 1,345,577.12, 2,018,021.75 and 398,726.40

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Solution

The fourth proportional to 1,345,577.12, 2,018,021.75 and 398,726.40 is: 597,987.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,577.12 : 2,018,021.75 = 398,726.40 : x
  2. Step 2: Convert to fraction form
    1,345,577.12/2,018,021.75 = 398,726.40/x
  3. Step 3: Cross multiply
    1,345,577.12x = 2,018,021.75 × 398,726.40
  4. Step 4: Simplify right side
    1,345,577.12x = 804,638,545,505.57
  5. Step 5: Solve for x
    x = 804,638,545,505.57/1,345,577.12
  6. Step 6: Final answer
    x = 597,987.69

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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.