Home / 920,137.60-1,379,385.60-359,041.60

Finding the Fourth Proportional to 920,137.60, 1,379,385.60 and 359,041.60

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Solution

The fourth proportional to 920,137.60, 1,379,385.60 and 359,041.60 is: 538,242.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,137.60 : 1,379,385.60 = 359,041.60 : x
  2. Step 2: Convert to fraction form
    920,137.60/1,379,385.60 = 359,041.60/x
  3. Step 3: Cross multiply
    920,137.60x = 1,379,385.60 × 359,041.60
  4. Step 4: Simplify right side
    920,137.60x = 495,256,812,840.96
  5. Step 5: Solve for x
    x = 495,256,812,840.96/920,137.60
  6. Step 6: Final answer
    x = 538,242.12

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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.