Home / 745,430.79-1,028,666.42-455,527.11

Finding the Fourth Proportional to 745,430.79, 1,028,666.42 and 455,527.11

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Solution

The fourth proportional to 745,430.79, 1,028,666.42 and 455,527.11 is: 628,610.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,430.79 : 1,028,666.42 = 455,527.11 : x
  2. Step 2: Convert to fraction form
    745,430.79/1,028,666.42 = 455,527.11/x
  3. Step 3: Cross multiply
    745,430.79x = 1,028,666.42 × 455,527.11
  4. Step 4: Simplify right side
    745,430.79x = 468,585,441,456.65
  5. Step 5: Solve for x
    x = 468,585,441,456.65/745,430.79
  6. Step 6: Final answer
    x = 628,610.26

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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.