Home / 648,889.31-971,417.10-479,283.41

Finding the Fourth Proportional to 648,889.31, 971,417.10 and 479,283.41

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Solution

The fourth proportional to 648,889.31, 971,417.10 and 479,283.41 is: 717,509.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,889.31 : 971,417.10 = 479,283.41 : x
  2. Step 2: Convert to fraction form
    648,889.31/971,417.10 = 479,283.41/x
  3. Step 3: Cross multiply
    648,889.31x = 971,417.10 × 479,283.41
  4. Step 4: Simplify right side
    648,889.31x = 465,584,100,220.31
  5. Step 5: Solve for x
    x = 465,584,100,220.31/648,889.31
  6. Step 6: Final answer
    x = 717,509.28

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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.