Home / 679,771.32-938,064.18-373,847.28

Finding the Fourth Proportional to 679,771.32, 938,064.18 and 373,847.28

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Solution

The fourth proportional to 679,771.32, 938,064.18 and 373,847.28 is: 515,898.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,771.32 : 938,064.18 = 373,847.28 : x
  2. Step 2: Convert to fraction form
    679,771.32/938,064.18 = 373,847.28/x
  3. Step 3: Cross multiply
    679,771.32x = 938,064.18 × 373,847.28
  4. Step 4: Simplify right side
    679,771.32x = 350,692,742,158.43
  5. Step 5: Solve for x
    x = 350,692,742,158.43/679,771.32
  6. Step 6: Final answer
    x = 515,898.11

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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.