Home / 977,963.40-1,467,297.45-438,175.35

Finding the Fourth Proportional to 977,963.40, 1,467,297.45 and 438,175.35

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Solution

The fourth proportional to 977,963.40, 1,467,297.45 and 438,175.35 is: 657,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,963.40 : 1,467,297.45 = 438,175.35 : x
  2. Step 2: Convert to fraction form
    977,963.40/1,467,297.45 = 438,175.35/x
  3. Step 3: Cross multiply
    977,963.40x = 1,467,297.45 × 438,175.35
  4. Step 4: Simplify right side
    977,963.40x = 642,933,573,707.86
  5. Step 5: Solve for x
    x = 642,933,573,707.86/977,963.40
  6. Step 6: Final answer
    x = 657,420.90

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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.