Home / 989,633.24-1,365,693.90-559,904.12

Finding the Fourth Proportional to 989,633.24, 1,365,693.90 and 559,904.12

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Solution

The fourth proportional to 989,633.24, 1,365,693.90 and 559,904.12 is: 772,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,633.24 : 1,365,693.90 = 559,904.12 : x
  2. Step 2: Convert to fraction form
    989,633.24/1,365,693.90 = 559,904.12/x
  3. Step 3: Cross multiply
    989,633.24x = 1,365,693.90 × 559,904.12
  4. Step 4: Simplify right side
    989,633.24x = 764,657,641,268.87
  5. Step 5: Solve for x
    x = 764,657,641,268.87/989,633.24
  6. Step 6: Final answer
    x = 772,667.70

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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.