Home / 907,905.20-1,253,445.72-807,011.60

Finding the Fourth Proportional to 907,905.20, 1,253,445.72 and 807,011.60

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Solution

The fourth proportional to 907,905.20, 1,253,445.72 and 807,011.60 is: 1,114,152.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,905.20 : 1,253,445.72 = 807,011.60 : x
  2. Step 2: Convert to fraction form
    907,905.20/1,253,445.72 = 807,011.60/x
  3. Step 3: Cross multiply
    907,905.20x = 1,253,445.72 × 807,011.60
  4. Step 4: Simplify right side
    907,905.20x = 1,011,545,236,010.35
  5. Step 5: Solve for x
    x = 1,011,545,236,010.35/907,905.20
  6. Step 6: Final answer
    x = 1,114,152.93

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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.