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Finding the Fourth Proportional to 403,541.69, 556,754.24 and 260,396.87

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Solution

The fourth proportional to 403,541.69, 556,754.24 and 260,396.87 is: 359,261.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,541.69 : 556,754.24 = 260,396.87 : x
  2. Step 2: Convert to fraction form
    403,541.69/556,754.24 = 260,396.87/x
  3. Step 3: Cross multiply
    403,541.69x = 556,754.24 × 260,396.87
  4. Step 4: Simplify right side
    403,541.69x = 144,977,060,153.24
  5. Step 5: Solve for x
    x = 144,977,060,153.24/403,541.69
  6. Step 6: Final answer
    x = 359,261.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.