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Finding the Fourth Proportional to 630,433.30, 945,779.55 and 210,010.90

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Solution

The fourth proportional to 630,433.30, 945,779.55 and 210,010.90 is: 315,059.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,433.30 : 945,779.55 = 210,010.90 : x
  2. Step 2: Convert to fraction form
    630,433.30/945,779.55 = 210,010.90/x
  3. Step 3: Cross multiply
    630,433.30x = 945,779.55 × 210,010.90
  4. Step 4: Simplify right side
    630,433.30x = 198,624,014,497.10
  5. Step 5: Solve for x
    x = 198,624,014,497.10/630,433.30
  6. Step 6: Final answer
    x = 315,059.52

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1.5x scale

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.