Home / 719,663.20-1,079,624.40-298,981.60

Finding the Fourth Proportional to 719,663.20, 1,079,624.40 and 298,981.60

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Solution

The fourth proportional to 719,663.20, 1,079,624.40 and 298,981.60 is: 448,526.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,663.20 : 1,079,624.40 = 298,981.60 : x
  2. Step 2: Convert to fraction form
    719,663.20/1,079,624.40 = 298,981.60/x
  3. Step 3: Cross multiply
    719,663.20x = 1,079,624.40 × 298,981.60
  4. Step 4: Simplify right side
    719,663.20x = 322,787,830,511.04
  5. Step 5: Solve for x
    x = 322,787,830,511.04/719,663.20
  6. Step 6: Final answer
    x = 448,526.24

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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.