Home / 1,431,401.80-1,975,312.26-786,808.24

Finding the Fourth Proportional to 1,431,401.80, 1,975,312.26 and 786,808.24

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Solution

The fourth proportional to 1,431,401.80, 1,975,312.26 and 786,808.24 is: 1,085,783.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,401.80 : 1,975,312.26 = 786,808.24 : x
  2. Step 2: Convert to fraction form
    1,431,401.80/1,975,312.26 = 786,808.24/x
  3. Step 3: Cross multiply
    1,431,401.80x = 1,975,312.26 × 786,808.24
  4. Step 4: Simplify right side
    1,431,401.80x = 1,554,191,962,741.02
  5. Step 5: Solve for x
    x = 1,554,191,962,741.02/1,431,401.80
  6. Step 6: Final answer
    x = 1,085,783.16

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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.