Home / 673,314.70-1,009,972.05-421,372.30

Finding the Fourth Proportional to 673,314.70, 1,009,972.05 and 421,372.30

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Solution

The fourth proportional to 673,314.70, 1,009,972.05 and 421,372.30 is: 632,058.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,314.70 : 1,009,972.05 = 421,372.30 : x
  2. Step 2: Convert to fraction form
    673,314.70/1,009,972.05 = 421,372.30/x
  3. Step 3: Cross multiply
    673,314.70x = 1,009,972.05 × 421,372.30
  4. Step 4: Simplify right side
    673,314.70x = 425,574,245,644.22
  5. Step 5: Solve for x
    x = 425,574,245,644.22/673,314.70
  6. Step 6: Final answer
    x = 632,058.45

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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.