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Finding the Fourth Proportional to 670,665.88, 925,514.64 and 380,332.48

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Solution

The fourth proportional to 670,665.88, 925,514.64 and 380,332.48 is: 524,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,665.88 : 925,514.64 = 380,332.48 : x
  2. Step 2: Convert to fraction form
    670,665.88/925,514.64 = 380,332.48/x
  3. Step 3: Cross multiply
    670,665.88x = 925,514.64 × 380,332.48
  4. Step 4: Simplify right side
    670,665.88x = 352,003,278,307.51
  5. Step 5: Solve for x
    x = 352,003,278,307.51/670,665.88
  6. Step 6: Final answer
    x = 524,856.40

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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.