Home / 1,431,282.42-1,975,129.65-786,703.86

Finding the Fourth Proportional to 1,431,282.42, 1,975,129.65 and 786,703.86

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Solution

The fourth proportional to 1,431,282.42, 1,975,129.65 and 786,703.86 is: 1,085,629.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,282.42 : 1,975,129.65 = 786,703.86 : x
  2. Step 2: Convert to fraction form
    1,431,282.42/1,975,129.65 = 786,703.86/x
  3. Step 3: Cross multiply
    1,431,282.42x = 1,975,129.65 × 786,703.86
  4. Step 4: Simplify right side
    1,431,282.42x = 1,553,842,119,655.45
  5. Step 5: Solve for x
    x = 1,553,842,119,655.45/1,431,282.42
  6. Step 6: Final answer
    x = 1,085,629.29

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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.