Home / 648,005.40-968,897.70-480,043.80

Finding the Fourth Proportional to 648,005.40, 968,897.70 and 480,043.80

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Solution

The fourth proportional to 648,005.40, 968,897.70 and 480,043.80 is: 717,761.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,005.40 : 968,897.70 = 480,043.80 : x
  2. Step 2: Convert to fraction form
    648,005.40/968,897.70 = 480,043.80/x
  3. Step 3: Cross multiply
    648,005.40x = 968,897.70 × 480,043.80
  4. Step 4: Simplify right side
    648,005.40x = 465,113,333,719.26
  5. Step 5: Solve for x
    x = 465,113,333,719.26/648,005.40
  6. Step 6: Final answer
    x = 717,761.51

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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.