Home / 1,431,440.48-1,975,412.40-786,887.84

Finding the Fourth Proportional to 1,431,440.48, 1,975,412.40 and 786,887.84

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Solution

The fourth proportional to 1,431,440.48, 1,975,412.40 and 786,887.84 is: 1,085,918.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,440.48 : 1,975,412.40 = 786,887.84 : x
  2. Step 2: Convert to fraction form
    1,431,440.48/1,975,412.40 = 786,887.84/x
  3. Step 3: Cross multiply
    1,431,440.48x = 1,975,412.40 × 786,887.84
  4. Step 4: Simplify right side
    1,431,440.48x = 1,554,427,996,545.22
  5. Step 5: Solve for x
    x = 1,554,427,996,545.22/1,431,440.48
  6. Step 6: Final answer
    x = 1,085,918.71

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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.