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Finding the Fourth Proportional to 670,309.92, 925,004.16 and 368,501.76

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Solution

The fourth proportional to 670,309.92, 925,004.16 and 368,501.76 is: 508,519.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,309.92 : 925,004.16 = 368,501.76 : x
  2. Step 2: Convert to fraction form
    670,309.92/925,004.16 = 368,501.76/x
  3. Step 3: Cross multiply
    670,309.92x = 925,004.16 × 368,501.76
  4. Step 4: Simplify right side
    670,309.92x = 340,865,660,967.32
  5. Step 5: Solve for x
    x = 340,865,660,967.32/670,309.92
  6. Step 6: Final answer
    x = 508,519.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.