Home / 909,721.56-1,364,437.68-302,459.38

Finding the Fourth Proportional to 909,721.56, 1,364,437.68 and 302,459.38

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Solution

The fourth proportional to 909,721.56, 1,364,437.68 and 302,459.38 is: 453,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,721.56 : 1,364,437.68 = 302,459.38 : x
  2. Step 2: Convert to fraction form
    909,721.56/1,364,437.68 = 302,459.38/x
  3. Step 3: Cross multiply
    909,721.56x = 1,364,437.68 × 302,459.38
  4. Step 4: Simplify right side
    909,721.56x = 412,686,974,741.44
  5. Step 5: Solve for x
    x = 412,686,974,741.44/909,721.56
  6. Step 6: Final answer
    x = 453,640.97

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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.