Home / 1,500,538.50-2,070,743.27-821,475

Finding the Fourth Proportional to 1,500,538.50, 2,070,743.27 and 821,475

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Solution

The fourth proportional to 1,500,538.50, 2,070,743.27 and 821,475 is: 1,133,635.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,538.50 : 2,070,743.27 = 821,475 : x
  2. Step 2: Convert to fraction form
    1,500,538.50/2,070,743.27 = 821,475/x
  3. Step 3: Cross multiply
    1,500,538.50x = 2,070,743.27 × 821,475
  4. Step 4: Simplify right side
    1,500,538.50x = 1,701,063,823,615.88
  5. Step 5: Solve for x
    x = 1,701,063,823,615.88/1,500,538.50
  6. Step 6: Final answer
    x = 1,133,635.57

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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.