Home / 1,431,875.51-1,975,937.60-787,290.47

Finding the Fourth Proportional to 1,431,875.51, 1,975,937.60 and 787,290.47

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Solution

The fourth proportional to 1,431,875.51, 1,975,937.60 and 787,290.47 is: 1,086,433.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,875.51 : 1,975,937.60 = 787,290.47 : x
  2. Step 2: Convert to fraction form
    1,431,875.51/1,975,937.60 = 787,290.47/x
  3. Step 3: Cross multiply
    1,431,875.51x = 1,975,937.60 × 787,290.47
  4. Step 4: Simplify right side
    1,431,875.51x = 1,555,636,837,858.22
  5. Step 5: Solve for x
    x = 1,555,636,837,858.22/1,431,875.51
  6. Step 6: Final answer
    x = 1,086,433.02

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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.