Home / 1,153,689.38-1,728,120.26-927,828.98

Finding the Fourth Proportional to 1,153,689.38, 1,728,120.26 and 927,828.98

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Solution

The fourth proportional to 1,153,689.38, 1,728,120.26 and 927,828.98 is: 1,389,802.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,689.38 : 1,728,120.26 = 927,828.98 : x
  2. Step 2: Convert to fraction form
    1,153,689.38/1,728,120.26 = 927,828.98/x
  3. Step 3: Cross multiply
    1,153,689.38x = 1,728,120.26 × 927,828.98
  4. Step 4: Simplify right side
    1,153,689.38x = 1,603,400,058,153.13
  5. Step 5: Solve for x
    x = 1,603,400,058,153.13/1,153,689.38
  6. Step 6: Final answer
    x = 1,389,802.22

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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.