Home / 899,738.78-1,241,641.98-491,845.51

Finding the Fourth Proportional to 899,738.78, 1,241,641.98 and 491,845.51

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Solution

The fourth proportional to 899,738.78, 1,241,641.98 and 491,845.51 is: 678,748.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,738.78 : 1,241,641.98 = 491,845.51 : x
  2. Step 2: Convert to fraction form
    899,738.78/1,241,641.98 = 491,845.51/x
  3. Step 3: Cross multiply
    899,738.78x = 1,241,641.98 × 491,845.51
  4. Step 4: Simplify right side
    899,738.78x = 610,696,024,223.07
  5. Step 5: Solve for x
    x = 610,696,024,223.07/899,738.78
  6. Step 6: Final answer
    x = 678,748.14

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1.5x scale

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.