Home / 916,930.60-1,376,432.70-543,164.20

Finding the Fourth Proportional to 916,930.60, 1,376,432.70 and 543,164.20

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Solution

The fourth proportional to 916,930.60, 1,376,432.70 and 543,164.20 is: 815,360.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,930.60 : 1,376,432.70 = 543,164.20 : x
  2. Step 2: Convert to fraction form
    916,930.60/1,376,432.70 = 543,164.20/x
  3. Step 3: Cross multiply
    916,930.60x = 1,376,432.70 × 543,164.20
  4. Step 4: Simplify right side
    916,930.60x = 747,628,966,349.34
  5. Step 5: Solve for x
    x = 747,628,966,349.34/916,930.60
  6. Step 6: Final answer
    x = 815,360.47

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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.