Home / 931,168.40-1,284,916.64-523,205.42

Finding the Fourth Proportional to 931,168.40, 1,284,916.64 and 523,205.42

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Solution

The fourth proportional to 931,168.40, 1,284,916.64 and 523,205.42 is: 721,969.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,168.40 : 1,284,916.64 = 523,205.42 : x
  2. Step 2: Convert to fraction form
    931,168.40/1,284,916.64 = 523,205.42/x
  3. Step 3: Cross multiply
    931,168.40x = 1,284,916.64 × 523,205.42
  4. Step 4: Simplify right side
    931,168.40x = 672,275,350,296.19
  5. Step 5: Solve for x
    x = 672,275,350,296.19/931,168.40
  6. Step 6: Final answer
    x = 721,969.68

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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.