Home / 659,984.49-910,646.85-401,688.43

Finding the Fourth Proportional to 659,984.49, 910,646.85 and 401,688.43

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Solution

The fourth proportional to 659,984.49, 910,646.85 and 401,688.43 is: 554,249.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,984.49 : 910,646.85 = 401,688.43 : x
  2. Step 2: Convert to fraction form
    659,984.49/910,646.85 = 401,688.43/x
  3. Step 3: Cross multiply
    659,984.49x = 910,646.85 × 401,688.43
  4. Step 4: Simplify right side
    659,984.49x = 365,796,303,460.95
  5. Step 5: Solve for x
    x = 365,796,303,460.95/659,984.49
  6. Step 6: Final answer
    x = 554,249.85

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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.