Home / 1,431,469.68-1,975,434.56-786,931.40

Finding the Fourth Proportional to 1,431,469.68, 1,975,434.56 and 786,931.40

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Solution

The fourth proportional to 1,431,469.68, 1,975,434.56 and 786,931.40 is: 1,085,968.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,469.68 : 1,975,434.56 = 786,931.40 : x
  2. Step 2: Convert to fraction form
    1,431,469.68/1,975,434.56 = 786,931.40/x
  3. Step 3: Cross multiply
    1,431,469.68x = 1,975,434.56 × 786,931.40
  4. Step 4: Simplify right side
    1,431,469.68x = 1,554,531,483,909.18
  5. Step 5: Solve for x
    x = 1,554,531,483,909.18/1,431,469.68
  6. Step 6: Final answer
    x = 1,085,968.85

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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.