Home / 989,453.68-1,365,476.58-559,725.20

Finding the Fourth Proportional to 989,453.68, 1,365,476.58 and 559,725.20

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Solution

The fourth proportional to 989,453.68, 1,365,476.58 and 559,725.20 is: 772,438.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,453.68 : 1,365,476.58 = 559,725.20 : x
  2. Step 2: Convert to fraction form
    989,453.68/1,365,476.58 = 559,725.20/x
  3. Step 3: Cross multiply
    989,453.68x = 1,365,476.58 × 559,725.20
  4. Step 4: Simplify right side
    989,453.68x = 764,291,651,835.82
  5. Step 5: Solve for x
    x = 764,291,651,835.82/989,453.68
  6. Step 6: Final answer
    x = 772,438.03

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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.