Home / 1,515,930.78-2,091,929.55-836,852.70

Finding the Fourth Proportional to 1,515,930.78, 2,091,929.55 and 836,852.70

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Solution

The fourth proportional to 1,515,930.78, 2,091,929.55 and 836,852.70 is: 1,154,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,930.78 : 2,091,929.55 = 836,852.70 : x
  2. Step 2: Convert to fraction form
    1,515,930.78/2,091,929.55 = 836,852.70/x
  3. Step 3: Cross multiply
    1,515,930.78x = 2,091,929.55 × 836,852.70
  4. Step 4: Simplify right side
    1,515,930.78x = 1,750,636,892,127.29
  5. Step 5: Solve for x
    x = 1,750,636,892,127.29/1,515,930.78
  6. Step 6: Final answer
    x = 1,154,826.40

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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.