Home / 1,058,557.20-1,590,946.20-921,699.60

Finding the Fourth Proportional to 1,058,557.20, 1,590,946.20 and 921,699.60

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Solution

The fourth proportional to 1,058,557.20, 1,590,946.20 and 921,699.60 is: 1,385,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058,557.20 : 1,590,946.20 = 921,699.60 : x
  2. Step 2: Convert to fraction form
    1,058,557.20/1,590,946.20 = 921,699.60/x
  3. Step 3: Cross multiply
    1,058,557.20x = 1,590,946.20 × 921,699.60
  4. Step 4: Simplify right side
    1,058,557.20x = 1,466,374,476,161.52
  5. Step 5: Solve for x
    x = 1,466,374,476,161.52/1,058,557.20
  6. Step 6: Final answer
    x = 1,385,257.67

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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.