Home / 1,058,312.80-1,589,024.40-638,408.80

Finding the Fourth Proportional to 1,058,312.80, 1,589,024.40 and 638,408.80

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Solution

The fourth proportional to 1,058,312.80, 1,589,024.40 and 638,408.80 is: 958,551.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058,312.80 : 1,589,024.40 = 638,408.80 : x
  2. Step 2: Convert to fraction form
    1,058,312.80/1,589,024.40 = 638,408.80/x
  3. Step 3: Cross multiply
    1,058,312.80x = 1,589,024.40 × 638,408.80
  4. Step 4: Simplify right side
    1,058,312.80x = 1,014,447,160,374.72
  5. Step 5: Solve for x
    x = 1,014,447,160,374.72/1,058,312.80
  6. Step 6: Final answer
    x = 958,551.35

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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.