Home / 745,060.91-1,028,271.58-418,427.60

Finding the Fourth Proportional to 745,060.91, 1,028,271.58 and 418,427.60

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Solution

The fourth proportional to 745,060.91, 1,028,271.58 and 418,427.60 is: 577,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,060.91 : 1,028,271.58 = 418,427.60 : x
  2. Step 2: Convert to fraction form
    745,060.91/1,028,271.58 = 418,427.60/x
  3. Step 3: Cross multiply
    745,060.91x = 1,028,271.58 × 418,427.60
  4. Step 4: Simplify right side
    745,060.91x = 430,257,203,180.18
  5. Step 5: Solve for x
    x = 430,257,203,180.18/745,060.91
  6. Step 6: Final answer
    x = 577,479.24

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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.