Home / 918,464.81-1,267,496.51-505,018.94

Finding the Fourth Proportional to 918,464.81, 1,267,496.51 and 505,018.94

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Solution

The fourth proportional to 918,464.81, 1,267,496.51 and 505,018.94 is: 696,934.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,464.81 : 1,267,496.51 = 505,018.94 : x
  2. Step 2: Convert to fraction form
    918,464.81/1,267,496.51 = 505,018.94/x
  3. Step 3: Cross multiply
    918,464.81x = 1,267,496.51 × 505,018.94
  4. Step 4: Simplify right side
    918,464.81x = 640,109,735,071.32
  5. Step 5: Solve for x
    x = 640,109,735,071.32/918,464.81
  6. Step 6: Final answer
    x = 696,934.42

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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.