Home / 664,030.80-916,270.08-377,519.22

Finding the Fourth Proportional to 664,030.80, 916,270.08 and 377,519.22

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Solution

The fourth proportional to 664,030.80, 916,270.08 and 377,519.22 is: 520,923.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,030.80 : 916,270.08 = 377,519.22 : x
  2. Step 2: Convert to fraction form
    664,030.80/916,270.08 = 377,519.22/x
  3. Step 3: Cross multiply
    664,030.80x = 916,270.08 × 377,519.22
  4. Step 4: Simplify right side
    664,030.80x = 345,909,565,910.94
  5. Step 5: Solve for x
    x = 345,909,565,910.94/664,030.80
  6. Step 6: Final answer
    x = 520,923.98

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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.