Home / 1,688,507.21-2,330,143.71-914,146.22

Finding the Fourth Proportional to 1,688,507.21, 2,330,143.71 and 914,146.22

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Solution

The fourth proportional to 1,688,507.21, 2,330,143.71 and 914,146.22 is: 1,261,523.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,507.21 : 2,330,143.71 = 914,146.22 : x
  2. Step 2: Convert to fraction form
    1,688,507.21/2,330,143.71 = 914,146.22/x
  3. Step 3: Cross multiply
    1,688,507.21x = 2,330,143.71 × 914,146.22
  4. Step 4: Simplify right side
    1,688,507.21x = 2,130,092,064,553.28
  5. Step 5: Solve for x
    x = 2,130,092,064,553.28/1,688,507.21
  6. Step 6: Final answer
    x = 1,261,523.82

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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.