Home / 1,070,422.40-1,604,272.80-438,622.40

Finding the Fourth Proportional to 1,070,422.40, 1,604,272.80 and 438,622.40

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Solution

The fourth proportional to 1,070,422.40, 1,604,272.80 and 438,622.40 is: 657,375.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,422.40 : 1,604,272.80 = 438,622.40 : x
  2. Step 2: Convert to fraction form
    1,070,422.40/1,604,272.80 = 438,622.40/x
  3. Step 3: Cross multiply
    1,070,422.40x = 1,604,272.80 × 438,622.40
  4. Step 4: Simplify right side
    1,070,422.40x = 703,669,985,790.72
  5. Step 5: Solve for x
    x = 703,669,985,790.72/1,070,422.40
  6. Step 6: Final answer
    x = 657,375.99

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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.