Home / 419,968.40-579,559.12-228,984.98

Finding the Fourth Proportional to 419,968.40, 579,559.12 and 228,984.98

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Solution

The fourth proportional to 419,968.40, 579,559.12 and 228,984.98 is: 316,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,968.40 : 579,559.12 = 228,984.98 : x
  2. Step 2: Convert to fraction form
    419,968.40/579,559.12 = 228,984.98/x
  3. Step 3: Cross multiply
    419,968.40x = 579,559.12 × 228,984.98
  4. Step 4: Simplify right side
    419,968.40x = 132,710,333,502.02
  5. Step 5: Solve for x
    x = 132,710,333,502.02/419,968.40
  6. Step 6: Final answer
    x = 316,000.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.