Home / 727,298.39-1,090,573.98-390,622.30

Finding the Fourth Proportional to 727,298.39, 1,090,573.98 and 390,622.30

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Solution

The fourth proportional to 727,298.39, 1,090,573.98 and 390,622.30 is: 585,732.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,298.39 : 1,090,573.98 = 390,622.30 : x
  2. Step 2: Convert to fraction form
    727,298.39/1,090,573.98 = 390,622.30/x
  3. Step 3: Cross multiply
    727,298.39x = 1,090,573.98 × 390,622.30
  4. Step 4: Simplify right side
    727,298.39x = 426,002,512,196.49
  5. Step 5: Solve for x
    x = 426,002,512,196.49/727,298.39
  6. Step 6: Final answer
    x = 585,732.78

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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.