Home / 747,625.89-1,121,044.77-326,409.69

Finding the Fourth Proportional to 747,625.89, 1,121,044.77 and 326,409.69

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Solution

The fourth proportional to 747,625.89, 1,121,044.77 and 326,409.69 is: 489,442.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,625.89 : 1,121,044.77 = 326,409.69 : x
  2. Step 2: Convert to fraction form
    747,625.89/1,121,044.77 = 326,409.69/x
  3. Step 3: Cross multiply
    747,625.89x = 1,121,044.77 × 326,409.69
  4. Step 4: Simplify right side
    747,625.89x = 365,919,875,851.82
  5. Step 5: Solve for x
    x = 365,919,875,851.82/747,625.89
  6. Step 6: Final answer
    x = 489,442.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.