Home / 1,058,369.34-1,587,314.80-489,438.91

Finding the Fourth Proportional to 1,058,369.34, 1,587,314.80 and 489,438.91

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Solution

The fourth proportional to 1,058,369.34, 1,587,314.80 and 489,438.91 is: 734,047.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058,369.34 : 1,587,314.80 = 489,438.91 : x
  2. Step 2: Convert to fraction form
    1,058,369.34/1,587,314.80 = 489,438.91/x
  3. Step 3: Cross multiply
    1,058,369.34x = 1,587,314.80 × 489,438.91
  4. Step 4: Simplify right side
    1,058,369.34x = 776,893,625,538.87
  5. Step 5: Solve for x
    x = 776,893,625,538.87/1,058,369.34
  6. Step 6: Final answer
    x = 734,047.74

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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.