Home / 1,395,892.17-1,925,840.64-912,740.13

Finding the Fourth Proportional to 1,395,892.17, 1,925,840.64 and 912,740.13

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Solution

The fourth proportional to 1,395,892.17, 1,925,840.64 and 912,740.13 is: 1,259,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,892.17 : 1,925,840.64 = 912,740.13 : x
  2. Step 2: Convert to fraction form
    1,395,892.17/1,925,840.64 = 912,740.13/x
  3. Step 3: Cross multiply
    1,395,892.17x = 1,925,840.64 × 912,740.13
  4. Step 4: Simplify right side
    1,395,892.17x = 1,757,792,036,112.88
  5. Step 5: Solve for x
    x = 1,757,792,036,112.88/1,395,892.17
  6. Step 6: Final answer
    x = 1,259,260.62

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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.