Home / 1,678,619.70-2,316,422.75-953,465.16

Finding the Fourth Proportional to 1,678,619.70, 2,316,422.75 and 953,465.16

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Solution

The fourth proportional to 1,678,619.70, 2,316,422.75 and 953,465.16 is: 1,315,740.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,619.70 : 2,316,422.75 = 953,465.16 : x
  2. Step 2: Convert to fraction form
    1,678,619.70/2,316,422.75 = 953,465.16/x
  3. Step 3: Cross multiply
    1,678,619.70x = 2,316,422.75 × 953,465.16
  4. Step 4: Simplify right side
    1,678,619.70x = 2,208,628,387,956.39
  5. Step 5: Solve for x
    x = 2,208,628,387,956.39/1,678,619.70
  6. Step 6: Final answer
    x = 1,315,740.78

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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.