Home / 776,578.86-1,072,009.49-522,077.67

Finding the Fourth Proportional to 776,578.86, 1,072,009.49 and 522,077.67

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Solution

The fourth proportional to 776,578.86, 1,072,009.49 and 522,077.67 is: 720,689.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,578.86 : 1,072,009.49 = 522,077.67 : x
  2. Step 2: Convert to fraction form
    776,578.86/1,072,009.49 = 522,077.67/x
  3. Step 3: Cross multiply
    776,578.86x = 1,072,009.49 × 522,077.67
  4. Step 4: Simplify right side
    776,578.86x = 559,672,218,062.28
  5. Step 5: Solve for x
    x = 559,672,218,062.28/776,578.86
  6. Step 6: Final answer
    x = 720,689.48

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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.