Home / 1,337,638.80-2,006,701.20-438,830.40

Finding the Fourth Proportional to 1,337,638.80, 2,006,701.20 and 438,830.40

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Solution

The fourth proportional to 1,337,638.80, 2,006,701.20 and 438,830.40 is: 658,325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337,638.80 : 2,006,701.20 = 438,830.40 : x
  2. Step 2: Convert to fraction form
    1,337,638.80/2,006,701.20 = 438,830.40/x
  3. Step 3: Cross multiply
    1,337,638.80x = 2,006,701.20 × 438,830.40
  4. Step 4: Simplify right side
    1,337,638.80x = 880,601,490,276.48
  5. Step 5: Solve for x
    x = 880,601,490,276.48/1,337,638.80
  6. Step 6: Final answer
    x = 658,325.32

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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.