Home / 745,889.22-1,029,401.46-455,484.78

Finding the Fourth Proportional to 745,889.22, 1,029,401.46 and 455,484.78

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Solution

The fourth proportional to 745,889.22, 1,029,401.46 and 455,484.78 is: 628,614.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,889.22 : 1,029,401.46 = 455,484.78 : x
  2. Step 2: Convert to fraction form
    745,889.22/1,029,401.46 = 455,484.78/x
  3. Step 3: Cross multiply
    745,889.22x = 1,029,401.46 × 455,484.78
  4. Step 4: Simplify right side
    745,889.22x = 468,876,697,539.78
  5. Step 5: Solve for x
    x = 468,876,697,539.78/745,889.22
  6. Step 6: Final answer
    x = 628,614.39

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Double scale
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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.