Home / 909,307.69-1,364,016.21-278,226.97

Finding the Fourth Proportional to 909,307.69, 1,364,016.21 and 278,226.97

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Solution

The fourth proportional to 909,307.69, 1,364,016.21 and 278,226.97 is: 417,357.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,307.69 : 1,364,016.21 = 278,226.97 : x
  2. Step 2: Convert to fraction form
    909,307.69/1,364,016.21 = 278,226.97/x
  3. Step 3: Cross multiply
    909,307.69x = 1,364,016.21 × 278,226.97
  4. Step 4: Simplify right side
    909,307.69x = 379,506,092,685.79
  5. Step 5: Solve for x
    x = 379,506,092,685.79/909,307.69
  6. Step 6: Final answer
    x = 417,357.18

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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.