Home / 1,386,929.49-1,913,796.95-766,650.89

Finding the Fourth Proportional to 1,386,929.49, 1,913,796.95 and 766,650.89

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Solution

The fourth proportional to 1,386,929.49, 1,913,796.95 and 766,650.89 is: 1,057,886.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,929.49 : 1,913,796.95 = 766,650.89 : x
  2. Step 2: Convert to fraction form
    1,386,929.49/1,913,796.95 = 766,650.89/x
  3. Step 3: Cross multiply
    1,386,929.49x = 1,913,796.95 × 766,650.89
  4. Step 4: Simplify right side
    1,386,929.49x = 1,467,214,134,996.79
  5. Step 5: Solve for x
    x = 1,467,214,134,996.79/1,386,929.49
  6. Step 6: Final answer
    x = 1,057,886.61

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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.