Home / 738,419.81-1,109,941.79-487,313.93

Finding the Fourth Proportional to 738,419.81, 1,109,941.79 and 487,313.93

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Solution

The fourth proportional to 738,419.81, 1,109,941.79 and 487,313.93 is: 732,496.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,419.81 : 1,109,941.79 = 487,313.93 : x
  2. Step 2: Convert to fraction form
    738,419.81/1,109,941.79 = 487,313.93/x
  3. Step 3: Cross multiply
    738,419.81x = 1,109,941.79 × 487,313.93
  4. Step 4: Simplify right side
    738,419.81x = 540,890,096,094.42
  5. Step 5: Solve for x
    x = 540,890,096,094.42/738,419.81
  6. Step 6: Final answer
    x = 732,496.73

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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.