Home / 745,865.42-1,029,024.34-487,889.46

Finding the Fourth Proportional to 745,865.42, 1,029,024.34 and 487,889.46

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Solution

The fourth proportional to 745,865.42, 1,029,024.34 and 487,889.46 is: 673,110.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,865.42 : 1,029,024.34 = 487,889.46 : x
  2. Step 2: Convert to fraction form
    745,865.42/1,029,024.34 = 487,889.46/x
  3. Step 3: Cross multiply
    745,865.42x = 1,029,024.34 × 487,889.46
  4. Step 4: Simplify right side
    745,865.42x = 502,050,128,349.73
  5. Step 5: Solve for x
    x = 502,050,128,349.73/745,865.42
  6. Step 6: Final answer
    x = 673,110.88

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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.