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Finding the Fourth Proportional to 564,185.63, 778,371.84 and 370,697.55

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Solution

The fourth proportional to 564,185.63, 778,371.84 and 370,697.55 is: 511,428.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,185.63 : 778,371.84 = 370,697.55 : x
  2. Step 2: Convert to fraction form
    564,185.63/778,371.84 = 370,697.55/x
  3. Step 3: Cross multiply
    564,185.63x = 778,371.84 × 370,697.55
  4. Step 4: Simplify right side
    564,185.63x = 288,540,529,721.76
  5. Step 5: Solve for x
    x = 288,540,529,721.76/564,185.63
  6. Step 6: Final answer
    x = 511,428.36

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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.