Home / 745,289.64-1,028,447.82-423,006.30

Finding the Fourth Proportional to 745,289.64, 1,028,447.82 and 423,006.30

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Solution

The fourth proportional to 745,289.64, 1,028,447.82 and 423,006.30 is: 583,719.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,289.64 : 1,028,447.82 = 423,006.30 : x
  2. Step 2: Convert to fraction form
    745,289.64/1,028,447.82 = 423,006.30/x
  3. Step 3: Cross multiply
    745,289.64x = 1,028,447.82 × 423,006.30
  4. Step 4: Simplify right side
    745,289.64x = 435,039,907,081.27
  5. Step 5: Solve for x
    x = 435,039,907,081.27/745,289.64
  6. Step 6: Final answer
    x = 583,719.25

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1.5x scale

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.