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Finding the Fourth Proportional to 650,491.40, 975,907.20 and 251,145.20

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Solution

The fourth proportional to 650,491.40, 975,907.20 and 251,145.20 is: 376,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,491.40 : 975,907.20 = 251,145.20 : x
  2. Step 2: Convert to fraction form
    650,491.40/975,907.20 = 251,145.20/x
  3. Step 3: Cross multiply
    650,491.40x = 975,907.20 × 251,145.20
  4. Step 4: Simplify right side
    650,491.40x = 245,094,408,925.44
  5. Step 5: Solve for x
    x = 245,094,408,925.44/650,491.40
  6. Step 6: Final answer
    x = 376,783.47

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1.5x scale

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.