Home / 1,219,866-1,683,479.76-676,061.12

Finding the Fourth Proportional to 1,219,866, 1,683,479.76 and 676,061.12

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Solution

The fourth proportional to 1,219,866, 1,683,479.76 and 676,061.12 is: 933,000.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,866 : 1,683,479.76 = 676,061.12 : x
  2. Step 2: Convert to fraction form
    1,219,866/1,683,479.76 = 676,061.12/x
  3. Step 3: Cross multiply
    1,219,866x = 1,683,479.76 × 676,061.12
  4. Step 4: Simplify right side
    1,219,866x = 1,138,135,212,042.93
  5. Step 5: Solve for x
    x = 1,138,135,212,042.93/1,219,866
  6. Step 6: Final answer
    x = 933,000.19

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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.