Home / 478,744.18-660,636.93-263,872.42

Finding the Fourth Proportional to 478,744.18, 660,636.93 and 263,872.42

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Solution

The fourth proportional to 478,744.18, 660,636.93 and 263,872.42 is: 364,127.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,744.18 : 660,636.93 = 263,872.42 : x
  2. Step 2: Convert to fraction form
    478,744.18/660,636.93 = 263,872.42/x
  3. Step 3: Cross multiply
    478,744.18x = 660,636.93 × 263,872.42
  4. Step 4: Simplify right side
    478,744.18x = 174,323,865,460.47
  5. Step 5: Solve for x
    x = 174,323,865,460.47/478,744.18
  6. Step 6: Final answer
    x = 364,127.38

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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.