Home / 1,207,959-1,666,940.93-664,090.85

Finding the Fourth Proportional to 1,207,959, 1,666,940.93 and 664,090.85

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Solution

The fourth proportional to 1,207,959, 1,666,940.93 and 664,090.85 is: 916,422.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,959 : 1,666,940.93 = 664,090.85 : x
  2. Step 2: Convert to fraction form
    1,207,959/1,666,940.93 = 664,090.85/x
  3. Step 3: Cross multiply
    1,207,959x = 1,666,940.93 × 664,090.85
  4. Step 4: Simplify right side
    1,207,959x = 1,107,000,209,938.67
  5. Step 5: Solve for x
    x = 1,107,000,209,938.67/1,207,959
  6. Step 6: Final answer
    x = 916,422.01

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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.