Home / 1,260,368.60-1,890,783.30-512,490.20

Finding the Fourth Proportional to 1,260,368.60, 1,890,783.30 and 512,490.20

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Solution

The fourth proportional to 1,260,368.60, 1,890,783.30 and 512,490.20 is: 768,828.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,368.60 : 1,890,783.30 = 512,490.20 : x
  2. Step 2: Convert to fraction form
    1,260,368.60/1,890,783.30 = 512,490.20/x
  3. Step 3: Cross multiply
    1,260,368.60x = 1,890,783.30 × 512,490.20
  4. Step 4: Simplify right side
    1,260,368.60x = 969,007,911,573.66
  5. Step 5: Solve for x
    x = 969,007,911,573.66/1,260,368.60
  6. Step 6: Final answer
    x = 768,828.99

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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.