Home / 1,139,549.32-1,709,421.18-298,099.72

Finding the Fourth Proportional to 1,139,549.32, 1,709,421.18 and 298,099.72

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Solution

The fourth proportional to 1,139,549.32, 1,709,421.18 and 298,099.72 is: 447,175.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,549.32 : 1,709,421.18 = 298,099.72 : x
  2. Step 2: Convert to fraction form
    1,139,549.32/1,709,421.18 = 298,099.72/x
  3. Step 3: Cross multiply
    1,139,549.32x = 1,709,421.18 × 298,099.72
  4. Step 4: Simplify right side
    1,139,549.32x = 509,577,975,120.07
  5. Step 5: Solve for x
    x = 509,577,975,120.07/1,139,549.32
  6. Step 6: Final answer
    x = 447,175.01

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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.