Home / 648,058.20-972,087.30-448,603.80

Finding the Fourth Proportional to 648,058.20, 972,087.30 and 448,603.80

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Solution

The fourth proportional to 648,058.20, 972,087.30 and 448,603.80 is: 672,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,058.20 : 972,087.30 = 448,603.80 : x
  2. Step 2: Convert to fraction form
    648,058.20/972,087.30 = 448,603.80/x
  3. Step 3: Cross multiply
    648,058.20x = 972,087.30 × 448,603.80
  4. Step 4: Simplify right side
    648,058.20x = 436,082,056,711.74
  5. Step 5: Solve for x
    x = 436,082,056,711.74/648,058.20
  6. Step 6: Final answer
    x = 672,905.70

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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.