Home / 1,189,462.87-1,641,459.87-645,598.50

Finding the Fourth Proportional to 1,189,462.87, 1,641,459.87 and 645,598.50

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Solution

The fourth proportional to 1,189,462.87, 1,641,459.87 and 645,598.50 is: 890,926.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,462.87 : 1,641,459.87 = 645,598.50 : x
  2. Step 2: Convert to fraction form
    1,189,462.87/1,641,459.87 = 645,598.50/x
  3. Step 3: Cross multiply
    1,189,462.87x = 1,641,459.87 × 645,598.50
  4. Step 4: Simplify right side
    1,189,462.87x = 1,059,724,018,446.90
  5. Step 5: Solve for x
    x = 1,059,724,018,446.90/1,189,462.87
  6. Step 6: Final answer
    x = 890,926.52

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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.