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Finding the Fourth Proportional to 620,756.40, 931,134.60 and 246,779.40

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Solution

The fourth proportional to 620,756.40, 931,134.60 and 246,779.40 is: 370,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,756.40 : 931,134.60 = 246,779.40 : x
  2. Step 2: Convert to fraction form
    620,756.40/931,134.60 = 246,779.40/x
  3. Step 3: Cross multiply
    620,756.40x = 931,134.60 × 246,779.40
  4. Step 4: Simplify right side
    620,756.40x = 229,784,837,907.24
  5. Step 5: Solve for x
    x = 229,784,837,907.24/620,756.40
  6. Step 6: Final answer
    x = 370,169.10

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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.