Home / 920,307.76-1,379,298.48-414,329.92

Finding the Fourth Proportional to 920,307.76, 1,379,298.48 and 414,329.92

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Solution

The fourth proportional to 920,307.76, 1,379,298.48 and 414,329.92 is: 620,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,307.76 : 1,379,298.48 = 414,329.92 : x
  2. Step 2: Convert to fraction form
    920,307.76/1,379,298.48 = 414,329.92/x
  3. Step 3: Cross multiply
    920,307.76x = 1,379,298.48 × 414,329.92
  4. Step 4: Simplify right side
    920,307.76x = 571,484,628,874.52
  5. Step 5: Solve for x
    x = 571,484,628,874.52/920,307.76
  6. Step 6: Final answer
    x = 620,971.22

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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.