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Finding the Fourth Proportional to 624,222.71, 861,430.31 and 352,302.06

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Solution

The fourth proportional to 624,222.71, 861,430.31 and 352,302.06 is: 486,178.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,222.71 : 861,430.31 = 352,302.06 : x
  2. Step 2: Convert to fraction form
    624,222.71/861,430.31 = 352,302.06/x
  3. Step 3: Cross multiply
    624,222.71x = 861,430.31 × 352,302.06
  4. Step 4: Simplify right side
    624,222.71x = 303,483,672,759.44
  5. Step 5: Solve for x
    x = 303,483,672,759.44/624,222.71
  6. Step 6: Final answer
    x = 486,178.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.