Home / 1,531,206.40-2,113,044.06-852,142.90

Finding the Fourth Proportional to 1,531,206.40, 2,113,044.06 and 852,142.90

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Solution

The fourth proportional to 1,531,206.40, 2,113,044.06 and 852,142.90 is: 1,175,945.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,206.40 : 2,113,044.06 = 852,142.90 : x
  2. Step 2: Convert to fraction form
    1,531,206.40/2,113,044.06 = 852,142.90/x
  3. Step 3: Cross multiply
    1,531,206.40x = 2,113,044.06 × 852,142.90
  4. Step 4: Simplify right side
    1,531,206.40x = 1,800,615,493,116.17
  5. Step 5: Solve for x
    x = 1,800,615,493,116.17/1,531,206.40
  6. Step 6: Final answer
    x = 1,175,945.64

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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.