Home / 877,731.75-1,210,926.89-510,147.81

Finding the Fourth Proportional to 877,731.75, 1,210,926.89 and 510,147.81

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Solution

The fourth proportional to 877,731.75, 1,210,926.89 and 510,147.81 is: 703,804.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,731.75 : 1,210,926.89 = 510,147.81 : x
  2. Step 2: Convert to fraction form
    877,731.75/1,210,926.89 = 510,147.81/x
  3. Step 3: Cross multiply
    877,731.75x = 1,210,926.89 × 510,147.81
  4. Step 4: Simplify right side
    877,731.75x = 617,751,698,452.87
  5. Step 5: Solve for x
    x = 617,751,698,452.87/877,731.75
  6. Step 6: Final answer
    x = 703,804.66

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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.