Home / 1,431,335.94-1,975,217-786,742.34

Finding the Fourth Proportional to 1,431,335.94, 1,975,217 and 786,742.34

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Solution

The fourth proportional to 1,431,335.94, 1,975,217 and 786,742.34 is: 1,085,689.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,335.94 : 1,975,217 = 786,742.34 : x
  2. Step 2: Convert to fraction form
    1,431,335.94/1,975,217 = 786,742.34/x
  3. Step 3: Cross multiply
    1,431,335.94x = 1,975,217 × 786,742.34
  4. Step 4: Simplify right side
    1,431,335.94x = 1,553,986,844,587.78
  5. Step 5: Solve for x
    x = 1,553,986,844,587.78/1,431,335.94
  6. Step 6: Final answer
    x = 1,085,689.81

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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.