Home / 1,224,255.84-1,689,476.49-680,389.89

Finding the Fourth Proportional to 1,224,255.84, 1,689,476.49 and 680,389.89

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Solution

The fourth proportional to 1,224,255.84, 1,689,476.49 and 680,389.89 is: 938,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,255.84 : 1,689,476.49 = 680,389.89 : x
  2. Step 2: Convert to fraction form
    1,224,255.84/1,689,476.49 = 680,389.89/x
  3. Step 3: Cross multiply
    1,224,255.84x = 1,689,476.49 × 680,389.89
  4. Step 4: Simplify right side
    1,224,255.84x = 1,149,502,723,188.69
  5. Step 5: Solve for x
    x = 1,149,502,723,188.69/1,224,255.84
  6. Step 6: Final answer
    x = 938,939.95

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Double scale
Find fourth proportional to 1,224,256.84, 1,689,477.87 and 680,390.89
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.