Home / 761,970.36-1,051,520.58-422,438.61

Finding the Fourth Proportional to 761,970.36, 1,051,520.58 and 422,438.61

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Solution

The fourth proportional to 761,970.36, 1,051,520.58 and 422,438.61 is: 582,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,970.36 : 1,051,520.58 = 422,438.61 : x
  2. Step 2: Convert to fraction form
    761,970.36/1,051,520.58 = 422,438.61/x
  3. Step 3: Cross multiply
    761,970.36x = 1,051,520.58 × 422,438.61
  4. Step 4: Simplify right side
    761,970.36x = 444,202,892,201.59
  5. Step 5: Solve for x
    x = 444,202,892,201.59/761,970.36
  6. Step 6: Final answer
    x = 582,966.10

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1.5x scale

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.