Home / 644,430.64-966,919.32-344,833.50

Finding the Fourth Proportional to 644,430.64, 966,919.32 and 344,833.50

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Solution

The fourth proportional to 644,430.64, 966,919.32 and 344,833.50 is: 517,396.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,430.64 : 966,919.32 = 344,833.50 : x
  2. Step 2: Convert to fraction form
    644,430.64/966,919.32 = 344,833.50/x
  3. Step 3: Cross multiply
    644,430.64x = 966,919.32 × 344,833.50
  4. Step 4: Simplify right side
    644,430.64x = 333,426,173,333.22
  5. Step 5: Solve for x
    x = 333,426,173,333.22/644,430.64
  6. Step 6: Final answer
    x = 517,396.52

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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.