Home / 670,070.78-1,005,293.76-270,991.79

Finding the Fourth Proportional to 670,070.78, 1,005,293.76 and 270,991.79

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Solution

The fourth proportional to 670,070.78, 1,005,293.76 and 270,991.79 is: 406,563.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,070.78 : 1,005,293.76 = 270,991.79 : x
  2. Step 2: Convert to fraction form
    670,070.78/1,005,293.76 = 270,991.79/x
  3. Step 3: Cross multiply
    670,070.78x = 1,005,293.76 × 270,991.79
  4. Step 4: Simplify right side
    670,070.78x = 272,426,358,011.47
  5. Step 5: Solve for x
    x = 272,426,358,011.47/670,070.78
  6. Step 6: Final answer
    x = 406,563.56

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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.