Home / 939,128.11-1,406,803.04-711,812.52

Finding the Fourth Proportional to 939,128.11, 1,406,803.04 and 711,812.52

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Solution

The fourth proportional to 939,128.11, 1,406,803.04 and 711,812.52 is: 1,066,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,128.11 : 1,406,803.04 = 711,812.52 : x
  2. Step 2: Convert to fraction form
    939,128.11/1,406,803.04 = 711,812.52/x
  3. Step 3: Cross multiply
    939,128.11x = 1,406,803.04 × 711,812.52
  4. Step 4: Simplify right side
    939,128.11x = 1,001,380,024,101.10
  5. Step 5: Solve for x
    x = 1,001,380,024,101.10/939,128.11
  6. Step 6: Final answer
    x = 1,066,286.93

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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.