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Finding the Fourth Proportional to 647,166.60, 970,020.90 and 310,368.60

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Solution

The fourth proportional to 647,166.60, 970,020.90 and 310,368.60 is: 465,203.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,166.60 : 970,020.90 = 310,368.60 : x
  2. Step 2: Convert to fraction form
    647,166.60/970,020.90 = 310,368.60/x
  3. Step 3: Cross multiply
    647,166.60x = 970,020.90 × 310,368.60
  4. Step 4: Simplify right side
    647,166.60x = 301,064,028,703.74
  5. Step 5: Solve for x
    x = 301,064,028,703.74/647,166.60
  6. Step 6: Final answer
    x = 465,203.29

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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.