Home / 745,429.79-1,028,665.04-455,526.11

Finding the Fourth Proportional to 745,429.79, 1,028,665.04 and 455,526.11

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Solution

The fourth proportional to 745,429.79, 1,028,665.04 and 455,526.11 is: 628,608.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,429.79 : 1,028,665.04 = 455,526.11 : x
  2. Step 2: Convert to fraction form
    745,429.79/1,028,665.04 = 455,526.11/x
  3. Step 3: Cross multiply
    745,429.79x = 1,028,665.04 × 455,526.11
  4. Step 4: Simplify right side
    745,429.79x = 468,583,784,164.19
  5. Step 5: Solve for x
    x = 468,583,784,164.19/745,429.79
  6. Step 6: Final answer
    x = 628,608.88

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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.