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Finding the Fourth Proportional to 569,015.05, 785,231.60 and 310,886.45

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Solution

The fourth proportional to 569,015.05, 785,231.60 and 310,886.45 is: 429,018.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,015.05 : 785,231.60 = 310,886.45 : x
  2. Step 2: Convert to fraction form
    569,015.05/785,231.60 = 310,886.45/x
  3. Step 3: Cross multiply
    569,015.05x = 785,231.60 × 310,886.45
  4. Step 4: Simplify right side
    569,015.05x = 244,117,859,071.23
  5. Step 5: Solve for x
    x = 244,117,859,071.23/569,015.05
  6. Step 6: Final answer
    x = 429,018.28

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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.