Home / 687,740.56-1,030,268.79-450,363.58

Finding the Fourth Proportional to 687,740.56, 1,030,268.79 and 450,363.58

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Solution

The fourth proportional to 687,740.56, 1,030,268.79 and 450,363.58 is: 674,666.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,740.56 : 1,030,268.79 = 450,363.58 : x
  2. Step 2: Convert to fraction form
    687,740.56/1,030,268.79 = 450,363.58/x
  3. Step 3: Cross multiply
    687,740.56x = 1,030,268.79 × 450,363.58
  4. Step 4: Simplify right side
    687,740.56x = 463,995,538,051.00
  5. Step 5: Solve for x
    x = 463,995,538,051.00/687,740.56
  6. Step 6: Final answer
    x = 674,666.53

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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.