Home / 920,140.60-1,379,390.10-359,044.60

Finding the Fourth Proportional to 920,140.60, 1,379,390.10 and 359,044.60

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Solution

The fourth proportional to 920,140.60, 1,379,390.10 and 359,044.60 is: 538,246.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,140.60 : 1,379,390.10 = 359,044.60 : x
  2. Step 2: Convert to fraction form
    920,140.60/1,379,390.10 = 359,044.60/x
  3. Step 3: Cross multiply
    920,140.60x = 1,379,390.10 × 359,044.60
  4. Step 4: Simplify right side
    920,140.60x = 495,262,566,698.46
  5. Step 5: Solve for x
    x = 495,262,566,698.46/920,140.60
  6. Step 6: Final answer
    x = 538,246.62

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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.