Home / 657,386.20-985,503.30-446,339.80

Finding the Fourth Proportional to 657,386.20, 985,503.30 and 446,339.80

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Solution

The fourth proportional to 657,386.20, 985,503.30 and 446,339.80 is: 669,118.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,386.20 : 985,503.30 = 446,339.80 : x
  2. Step 2: Convert to fraction form
    657,386.20/985,503.30 = 446,339.80/x
  3. Step 3: Cross multiply
    657,386.20x = 985,503.30 × 446,339.80
  4. Step 4: Simplify right side
    657,386.20x = 439,869,345,821.34
  5. Step 5: Solve for x
    x = 439,869,345,821.34/657,386.20
  6. Step 6: Final answer
    x = 669,118.62

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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.