Home / 644,030.64-966,439.08-407,046.96

Finding the Fourth Proportional to 644,030.64, 966,439.08 and 407,046.96

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Solution

The fourth proportional to 644,030.64, 966,439.08 and 407,046.96 is: 610,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,030.64 : 966,439.08 = 407,046.96 : x
  2. Step 2: Convert to fraction form
    644,030.64/966,439.08 = 407,046.96/x
  3. Step 3: Cross multiply
    644,030.64x = 966,439.08 × 407,046.96
  4. Step 4: Simplify right side
    644,030.64x = 393,386,089,539.20
  5. Step 5: Solve for x
    x = 393,386,089,539.20/644,030.64
  6. Step 6: Final answer
    x = 610,818.90

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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.