Home / 761,622.32-1,051,038.80-422,112.44

Finding the Fourth Proportional to 761,622.32, 1,051,038.80 and 422,112.44

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Solution

The fourth proportional to 761,622.32, 1,051,038.80 and 422,112.44 is: 582,515.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,622.32 : 1,051,038.80 = 422,112.44 : x
  2. Step 2: Convert to fraction form
    761,622.32/1,051,038.80 = 422,112.44/x
  3. Step 3: Cross multiply
    761,622.32x = 1,051,038.80 × 422,112.44
  4. Step 4: Simplify right side
    761,622.32x = 443,656,545,036.92
  5. Step 5: Solve for x
    x = 443,656,545,036.92/761,622.32
  6. Step 6: Final answer
    x = 582,515.16

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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.