Home / 1,279,031.53-1,765,090.22-698,279.14

Finding the Fourth Proportional to 1,279,031.53, 1,765,090.22 and 698,279.14

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Solution

The fourth proportional to 1,279,031.53, 1,765,090.22 and 698,279.14 is: 963,639.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,031.53 : 1,765,090.22 = 698,279.14 : x
  2. Step 2: Convert to fraction form
    1,279,031.53/1,765,090.22 = 698,279.14/x
  3. Step 3: Cross multiply
    1,279,031.53x = 1,765,090.22 × 698,279.14
  4. Step 4: Simplify right side
    1,279,031.53x = 1,232,525,688,914.86
  5. Step 5: Solve for x
    x = 1,232,525,688,914.86/1,279,031.53
  6. Step 6: Final answer
    x = 963,639.80

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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.