Home / 746,428.80-1,119,902.40-326,006.40

Finding the Fourth Proportional to 746,428.80, 1,119,902.40 and 326,006.40

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Solution

The fourth proportional to 746,428.80, 1,119,902.40 and 326,006.40 is: 489,122.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,428.80 : 1,119,902.40 = 326,006.40 : x
  2. Step 2: Convert to fraction form
    746,428.80/1,119,902.40 = 326,006.40/x
  3. Step 3: Cross multiply
    746,428.80x = 1,119,902.40 × 326,006.40
  4. Step 4: Simplify right side
    746,428.80x = 365,095,349,775.36
  5. Step 5: Solve for x
    x = 365,095,349,775.36/746,428.80
  6. Step 6: Final answer
    x = 489,122.81

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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.