Home / 648,680.16-973,113.10-199,438.75

Finding the Fourth Proportional to 648,680.16, 973,113.10 and 199,438.75

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Solution

The fourth proportional to 648,680.16, 973,113.10 and 199,438.75 is: 299,186.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,680.16 : 973,113.10 = 199,438.75 : x
  2. Step 2: Convert to fraction form
    648,680.16/973,113.10 = 199,438.75/x
  3. Step 3: Cross multiply
    648,680.16x = 973,113.10 × 199,438.75
  4. Step 4: Simplify right side
    648,680.16x = 194,076,460,272.63
  5. Step 5: Solve for x
    x = 194,076,460,272.63/648,680.16
  6. Step 6: Final answer
    x = 299,186.68

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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.