Home / 987,603.09-1,481,393.70-313,666.35

Finding the Fourth Proportional to 987,603.09, 1,481,393.70 and 313,666.35

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Solution

The fourth proportional to 987,603.09, 1,481,393.70 and 313,666.35 is: 470,496.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,603.09 : 1,481,393.70 = 313,666.35 : x
  2. Step 2: Convert to fraction form
    987,603.09/1,481,393.70 = 313,666.35/x
  3. Step 3: Cross multiply
    987,603.09x = 1,481,393.70 × 313,666.35
  4. Step 4: Simplify right side
    987,603.09x = 464,663,354,792.00
  5. Step 5: Solve for x
    x = 464,663,354,792.00/987,603.09
  6. Step 6: Final answer
    x = 470,496.05

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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.