Home / 640,484.03-959,949.20-470,427.51

Finding the Fourth Proportional to 640,484.03, 959,949.20 and 470,427.51

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Solution

The fourth proportional to 640,484.03, 959,949.20 and 470,427.51 is: 705,070.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,484.03 : 959,949.20 = 470,427.51 : x
  2. Step 2: Convert to fraction form
    640,484.03/959,949.20 = 470,427.51/x
  3. Step 3: Cross multiply
    640,484.03x = 959,949.20 × 470,427.51
  4. Step 4: Simplify right side
    640,484.03x = 451,586,509,530.35
  5. Step 5: Solve for x
    x = 451,586,509,530.35/640,484.03
  6. Step 6: Final answer
    x = 705,070.68

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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.