Home / 877,818.69-1,211,911.86-555,804.81

Finding the Fourth Proportional to 877,818.69, 1,211,911.86 and 555,804.81

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Solution

The fourth proportional to 877,818.69, 1,211,911.86 and 555,804.81 is: 767,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,818.69 : 1,211,911.86 = 555,804.81 : x
  2. Step 2: Convert to fraction form
    877,818.69/1,211,911.86 = 555,804.81/x
  3. Step 3: Cross multiply
    877,818.69x = 1,211,911.86 × 555,804.81
  4. Step 4: Simplify right side
    877,818.69x = 673,586,441,084.05
  5. Step 5: Solve for x
    x = 673,586,441,084.05/877,818.69
  6. Step 6: Final answer
    x = 767,341.19

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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.