Home / 1,431,439.23-1,975,410.68-786,886.59

Finding the Fourth Proportional to 1,431,439.23, 1,975,410.68 and 786,886.59

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Solution

The fourth proportional to 1,431,439.23, 1,975,410.68 and 786,886.59 is: 1,085,916.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,439.23 : 1,975,410.68 = 786,886.59 : x
  2. Step 2: Convert to fraction form
    1,431,439.23/1,975,410.68 = 786,886.59/x
  3. Step 3: Cross multiply
    1,431,439.23x = 1,975,410.68 × 786,886.59
  4. Step 4: Simplify right side
    1,431,439.23x = 1,554,424,169,900.35
  5. Step 5: Solve for x
    x = 1,554,424,169,900.35/1,431,439.23
  6. Step 6: Final answer
    x = 1,085,916.98

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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.