Home / 698,638.32-1,047,080.64-298,809

Finding the Fourth Proportional to 698,638.32, 1,047,080.64 and 298,809

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Solution

The fourth proportional to 698,638.32, 1,047,080.64 and 298,809 is: 447,838.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,638.32 : 1,047,080.64 = 298,809 : x
  2. Step 2: Convert to fraction form
    698,638.32/1,047,080.64 = 298,809/x
  3. Step 3: Cross multiply
    698,638.32x = 1,047,080.64 × 298,809
  4. Step 4: Simplify right side
    698,638.32x = 312,877,118,957.76
  5. Step 5: Solve for x
    x = 312,877,118,957.76/698,638.32
  6. Step 6: Final answer
    x = 447,838.47

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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.