Home / 478,325.49-660,089.10-263,465.55

Finding the Fourth Proportional to 478,325.49, 660,089.10 and 263,465.55

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Solution

The fourth proportional to 478,325.49, 660,089.10 and 263,465.55 is: 363,582.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,325.49 : 660,089.10 = 263,465.55 : x
  2. Step 2: Convert to fraction form
    478,325.49/660,089.10 = 263,465.55/x
  3. Step 3: Cross multiply
    478,325.49x = 660,089.10 × 263,465.55
  4. Step 4: Simplify right side
    478,325.49x = 173,910,737,780.51
  5. Step 5: Solve for x
    x = 173,910,737,780.51/478,325.49
  6. Step 6: Final answer
    x = 363,582.42

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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.