Home / 648,021.80-971,595.30-344,466.20

Finding the Fourth Proportional to 648,021.80, 971,595.30 and 344,466.20

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Solution

The fourth proportional to 648,021.80, 971,595.30 and 344,466.20 is: 516,466.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,021.80 : 971,595.30 = 344,466.20 : x
  2. Step 2: Convert to fraction form
    648,021.80/971,595.30 = 344,466.20/x
  3. Step 3: Cross multiply
    648,021.80x = 971,595.30 × 344,466.20
  4. Step 4: Simplify right side
    648,021.80x = 334,681,740,928.86
  5. Step 5: Solve for x
    x = 334,681,740,928.86/648,021.80
  6. Step 6: Final answer
    x = 516,466.79

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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.