Home / 1,431,478.35-1,975,464.75-786,925.71

Finding the Fourth Proportional to 1,431,478.35, 1,975,464.75 and 786,925.71

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Solution

The fourth proportional to 1,431,478.35, 1,975,464.75 and 786,925.71 is: 1,085,971.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,478.35 : 1,975,464.75 = 786,925.71 : x
  2. Step 2: Convert to fraction form
    1,431,478.35/1,975,464.75 = 786,925.71/x
  3. Step 3: Cross multiply
    1,431,478.35x = 1,975,464.75 × 786,925.71
  4. Step 4: Simplify right side
    1,431,478.35x = 1,554,544,000,973.72
  5. Step 5: Solve for x
    x = 1,554,544,000,973.72/1,431,478.35
  6. Step 6: Final answer
    x = 1,085,971.02

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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.