Home / 1,309,354.34-1,806,638.04-765,384.93

Finding the Fourth Proportional to 1,309,354.34, 1,806,638.04 and 765,384.93

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Solution

The fourth proportional to 1,309,354.34, 1,806,638.04 and 765,384.93 is: 1,056,072.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,354.34 : 1,806,638.04 = 765,384.93 : x
  2. Step 2: Convert to fraction form
    1,309,354.34/1,806,638.04 = 765,384.93/x
  3. Step 3: Cross multiply
    1,309,354.34x = 1,806,638.04 × 765,384.93
  4. Step 4: Simplify right side
    1,309,354.34x = 1,382,773,529,780.74
  5. Step 5: Solve for x
    x = 1,382,773,529,780.74/1,309,354.34
  6. Step 6: Final answer
    x = 1,056,072.82

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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.