Home / 1,189,425.79-1,641,409.13-645,561.52

Finding the Fourth Proportional to 1,189,425.79, 1,641,409.13 and 645,561.52

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Solution

The fourth proportional to 1,189,425.79, 1,641,409.13 and 645,561.52 is: 890,875.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,425.79 : 1,641,409.13 = 645,561.52 : x
  2. Step 2: Convert to fraction form
    1,189,425.79/1,641,409.13 = 645,561.52/x
  3. Step 3: Cross multiply
    1,189,425.79x = 1,641,409.13 × 645,561.52
  4. Step 4: Simplify right side
    1,189,425.79x = 1,059,630,572,904.68
  5. Step 5: Solve for x
    x = 1,059,630,572,904.68/1,189,425.79
  6. Step 6: Final answer
    x = 890,875.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.