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Finding the Fourth Proportional to 471,775.13, 651,077.04 and 355,280.03

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Solution

The fourth proportional to 471,775.13, 651,077.04 and 355,280.03 is: 490,307.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,775.13 : 651,077.04 = 355,280.03 : x
  2. Step 2: Convert to fraction form
    471,775.13/651,077.04 = 355,280.03/x
  3. Step 3: Cross multiply
    471,775.13x = 651,077.04 × 355,280.03
  4. Step 4: Simplify right side
    471,775.13x = 231,314,668,527.11
  5. Step 5: Solve for x
    x = 231,314,668,527.11/471,775.13
  6. Step 6: Final answer
    x = 490,307.05

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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.