Home / 745,018.58-1,028,323.35-458,778.56

Finding the Fourth Proportional to 745,018.58, 1,028,323.35 and 458,778.56

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Solution

The fourth proportional to 745,018.58, 1,028,323.35 and 458,778.56 is: 633,236.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,018.58 : 1,028,323.35 = 458,778.56 : x
  2. Step 2: Convert to fraction form
    745,018.58/1,028,323.35 = 458,778.56/x
  3. Step 3: Cross multiply
    745,018.58x = 1,028,323.35 × 458,778.56
  4. Step 4: Simplify right side
    745,018.58x = 471,772,700,585.76
  5. Step 5: Solve for x
    x = 471,772,700,585.76/745,018.58
  6. Step 6: Final answer
    x = 633,236.15

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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.