Home / 979,841.61-1,469,384.47-380,723.89

Finding the Fourth Proportional to 979,841.61, 1,469,384.47 and 380,723.89

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Solution

The fourth proportional to 979,841.61, 1,469,384.47 and 380,723.89 is: 570,938.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,841.61 : 1,469,384.47 = 380,723.89 : x
  2. Step 2: Convert to fraction form
    979,841.61/1,469,384.47 = 380,723.89/x
  3. Step 3: Cross multiply
    979,841.61x = 1,469,384.47 × 380,723.89
  4. Step 4: Simplify right side
    979,841.61x = 559,429,771,323.99
  5. Step 5: Solve for x
    x = 559,429,771,323.99/979,841.61
  6. Step 6: Final answer
    x = 570,938.98

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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.