Home / 771,392.05-1,157,834.39-372,313.76

Finding the Fourth Proportional to 771,392.05, 1,157,834.39 and 372,313.76

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Solution

The fourth proportional to 771,392.05, 1,157,834.39 and 372,313.76 is: 558,830.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,392.05 : 1,157,834.39 = 372,313.76 : x
  2. Step 2: Convert to fraction form
    771,392.05/1,157,834.39 = 372,313.76/x
  3. Step 3: Cross multiply
    771,392.05x = 1,157,834.39 × 372,313.76
  4. Step 4: Simplify right side
    771,392.05x = 431,077,667,547.47
  5. Step 5: Solve for x
    x = 431,077,667,547.47/771,392.05
  6. Step 6: Final answer
    x = 558,830.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.