Home / 740,765.79-1,109,989.58-572,700.31

Finding the Fourth Proportional to 740,765.79, 1,109,989.58 and 572,700.31

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Solution

The fourth proportional to 740,765.79, 1,109,989.58 and 572,700.31 is: 858,154.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,765.79 : 1,109,989.58 = 572,700.31 : x
  2. Step 2: Convert to fraction form
    740,765.79/1,109,989.58 = 572,700.31/x
  3. Step 3: Cross multiply
    740,765.79x = 1,109,989.58 × 572,700.31
  4. Step 4: Simplify right side
    740,765.79x = 635,691,370,924.29
  5. Step 5: Solve for x
    x = 635,691,370,924.29/740,765.79
  6. Step 6: Final answer
    x = 858,154.33

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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.