Home / 878,920.56-1,212,465.24-556,086.96

Finding the Fourth Proportional to 878,920.56, 1,212,465.24 and 556,086.96

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Solution

The fourth proportional to 878,920.56, 1,212,465.24 and 556,086.96 is: 767,118.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,920.56 : 1,212,465.24 = 556,086.96 : x
  2. Step 2: Convert to fraction form
    878,920.56/1,212,465.24 = 556,086.96/x
  3. Step 3: Cross multiply
    878,920.56x = 1,212,465.24 × 556,086.96
  4. Step 4: Simplify right side
    878,920.56x = 674,236,109,417.27
  5. Step 5: Solve for x
    x = 674,236,109,417.27/878,920.56
  6. Step 6: Final answer
    x = 767,118.37

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1.5x scale

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.