Home / 920,306.76-1,379,296.98-414,328.92

Finding the Fourth Proportional to 920,306.76, 1,379,296.98 and 414,328.92

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Solution

The fourth proportional to 920,306.76, 1,379,296.98 and 414,328.92 is: 620,969.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,306.76 : 1,379,296.98 = 414,328.92 : x
  2. Step 2: Convert to fraction form
    920,306.76/1,379,296.98 = 414,328.92/x
  3. Step 3: Cross multiply
    920,306.76x = 1,379,296.98 × 414,328.92
  4. Step 4: Simplify right side
    920,306.76x = 571,482,628,082.66
  5. Step 5: Solve for x
    x = 571,482,628,082.66/920,306.76
  6. Step 6: Final answer
    x = 620,969.72

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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.