Home / 690,833.07-1,036,389.33-291,474.72

Finding the Fourth Proportional to 690,833.07, 1,036,389.33 and 291,474.72

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Solution

The fourth proportional to 690,833.07, 1,036,389.33 and 291,474.72 is: 437,271.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,833.07 : 1,036,389.33 = 291,474.72 : x
  2. Step 2: Convert to fraction form
    690,833.07/1,036,389.33 = 291,474.72/x
  3. Step 3: Cross multiply
    690,833.07x = 1,036,389.33 × 291,474.72
  4. Step 4: Simplify right side
    690,833.07x = 302,081,289,772.74
  5. Step 5: Solve for x
    x = 302,081,289,772.74/690,833.07
  6. Step 6: Final answer
    x = 437,271.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.