Home / 859,817.40-1,289,726.10-544,630.20

Finding the Fourth Proportional to 859,817.40, 1,289,726.10 and 544,630.20

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Solution

The fourth proportional to 859,817.40, 1,289,726.10 and 544,630.20 is: 816,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,817.40 : 1,289,726.10 = 544,630.20 : x
  2. Step 2: Convert to fraction form
    859,817.40/1,289,726.10 = 544,630.20/x
  3. Step 3: Cross multiply
    859,817.40x = 1,289,726.10 × 544,630.20
  4. Step 4: Simplify right side
    859,817.40x = 702,423,783,788.22
  5. Step 5: Solve for x
    x = 702,423,783,788.22/859,817.40
  6. Step 6: Final answer
    x = 816,945.30

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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.