Home / 689,988.54-1,034,655.03-240,654.81

Finding the Fourth Proportional to 689,988.54, 1,034,655.03 and 240,654.81

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Solution

The fourth proportional to 689,988.54, 1,034,655.03 and 240,654.81 is: 360,867.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,988.54 : 1,034,655.03 = 240,654.81 : x
  2. Step 2: Convert to fraction form
    689,988.54/1,034,655.03 = 240,654.81/x
  3. Step 3: Cross multiply
    689,988.54x = 1,034,655.03 × 240,654.81
  4. Step 4: Simplify right side
    689,988.54x = 248,994,709,660.19
  5. Step 5: Solve for x
    x = 248,994,709,660.19/689,988.54
  6. Step 6: Final answer
    x = 360,867.89

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1.5x scale

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.