Home / 1,058,871.56-1,588,603.80-428,228.24

Finding the Fourth Proportional to 1,058,871.56, 1,588,603.80 and 428,228.24

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Solution

The fourth proportional to 1,058,871.56, 1,588,603.80 and 428,228.24 is: 642,462.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058,871.56 : 1,588,603.80 = 428,228.24 : x
  2. Step 2: Convert to fraction form
    1,058,871.56/1,588,603.80 = 428,228.24/x
  3. Step 3: Cross multiply
    1,058,871.56x = 1,588,603.80 × 428,228.24
  4. Step 4: Simplify right side
    1,058,871.56x = 680,285,009,331.31
  5. Step 5: Solve for x
    x = 680,285,009,331.31/1,058,871.56
  6. Step 6: Final answer
    x = 642,462.25

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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.