Home / 871,389.60-1,307,085.41-272,353.89

Finding the Fourth Proportional to 871,389.60, 1,307,085.41 and 272,353.89

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Solution

The fourth proportional to 871,389.60, 1,307,085.41 and 272,353.89 is: 408,531.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,389.60 : 1,307,085.41 = 272,353.89 : x
  2. Step 2: Convert to fraction form
    871,389.60/1,307,085.41 = 272,353.89/x
  3. Step 3: Cross multiply
    871,389.60x = 1,307,085.41 × 272,353.89
  4. Step 4: Simplify right side
    871,389.60x = 355,989,801,558.20
  5. Step 5: Solve for x
    x = 355,989,801,558.20/871,389.60
  6. Step 6: Final answer
    x = 408,531.16

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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.