Home / 920,285.40-1,380,657.06-731,458.20

Finding the Fourth Proportional to 920,285.40, 1,380,657.06 and 731,458.20

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Solution

The fourth proportional to 920,285.40, 1,380,657.06 and 731,458.20 is: 1,097,369.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,285.40 : 1,380,657.06 = 731,458.20 : x
  2. Step 2: Convert to fraction form
    920,285.40/1,380,657.06 = 731,458.20/x
  3. Step 3: Cross multiply
    920,285.40x = 1,380,657.06 × 731,458.20
  4. Step 4: Simplify right side
    920,285.40x = 1,009,892,927,924.89
  5. Step 5: Solve for x
    x = 1,009,892,927,924.89/920,285.40
  6. Step 6: Final answer
    x = 1,097,369.28

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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.