Home / 749,565.50-1,034,403.64-405,401.52

Finding the Fourth Proportional to 749,565.50, 1,034,403.64 and 405,401.52

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Solution

The fourth proportional to 749,565.50, 1,034,403.64 and 405,401.52 is: 559,455.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,565.50 : 1,034,403.64 = 405,401.52 : x
  2. Step 2: Convert to fraction form
    749,565.50/1,034,403.64 = 405,401.52/x
  3. Step 3: Cross multiply
    749,565.50x = 1,034,403.64 × 405,401.52
  4. Step 4: Simplify right side
    749,565.50x = 419,348,807,949.53
  5. Step 5: Solve for x
    x = 419,348,807,949.53/749,565.50
  6. Step 6: Final answer
    x = 559,455.86

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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.