Home / 1,212,061.64-1,672,657.95-668,216.89

Finding the Fourth Proportional to 1,212,061.64, 1,672,657.95 and 668,216.89

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Solution

The fourth proportional to 1,212,061.64, 1,672,657.95 and 668,216.89 is: 922,146.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,061.64 : 1,672,657.95 = 668,216.89 : x
  2. Step 2: Convert to fraction form
    1,212,061.64/1,672,657.95 = 668,216.89/x
  3. Step 3: Cross multiply
    1,212,061.64x = 1,672,657.95 × 668,216.89
  4. Step 4: Simplify right side
    1,212,061.64x = 1,117,698,294,220.69
  5. Step 5: Solve for x
    x = 1,117,698,294,220.69/1,212,061.64
  6. Step 6: Final answer
    x = 922,146.41

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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.