Home / 531,627-733,645.38-289,903.32

Finding the Fourth Proportional to 531,627, 733,645.38 and 289,903.32

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Solution

The fourth proportional to 531,627, 733,645.38 and 289,903.32 is: 400,066.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,627 : 733,645.38 = 289,903.32 : x
  2. Step 2: Convert to fraction form
    531,627/733,645.38 = 289,903.32/x
  3. Step 3: Cross multiply
    531,627x = 733,645.38 × 289,903.32
  4. Step 4: Simplify right side
    531,627x = 212,686,231,364.66
  5. Step 5: Solve for x
    x = 212,686,231,364.66/531,627
  6. Step 6: Final answer
    x = 400,066.65

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1.5x scale

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.