Home / 687,270.96-1,030,492.26-308,123.06

Finding the Fourth Proportional to 687,270.96, 1,030,492.26 and 308,123.06

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Solution

The fourth proportional to 687,270.96, 1,030,492.26 and 308,123.06 is: 461,998.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,270.96 : 1,030,492.26 = 308,123.06 : x
  2. Step 2: Convert to fraction form
    687,270.96/1,030,492.26 = 308,123.06/x
  3. Step 3: Cross multiply
    687,270.96x = 1,030,492.26 × 308,123.06
  4. Step 4: Simplify right side
    687,270.96x = 317,518,423,305.05
  5. Step 5: Solve for x
    x = 317,518,423,305.05/687,270.96
  6. Step 6: Final answer
    x = 461,998.89

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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.