Home / 710,999.40-1,066,110.30-289,799.40

Finding the Fourth Proportional to 710,999.40, 1,066,110.30 and 289,799.40

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Solution

The fourth proportional to 710,999.40, 1,066,110.30 and 289,799.40 is: 434,540.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,999.40 : 1,066,110.30 = 289,799.40 : x
  2. Step 2: Convert to fraction form
    710,999.40/1,066,110.30 = 289,799.40/x
  3. Step 3: Cross multiply
    710,999.40x = 1,066,110.30 × 289,799.40
  4. Step 4: Simplify right side
    710,999.40x = 308,958,125,273.82
  5. Step 5: Solve for x
    x = 308,958,125,273.82/710,999.40
  6. Step 6: Final answer
    x = 434,540.63

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1.5x scale

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.