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Finding the Fourth Proportional to 642,777.31, 963,486.18 and 237,709.24

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Solution

The fourth proportional to 642,777.31, 963,486.18 and 237,709.24 is: 356,312.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,777.31 : 963,486.18 = 237,709.24 : x
  2. Step 2: Convert to fraction form
    642,777.31/963,486.18 = 237,709.24/x
  3. Step 3: Cross multiply
    642,777.31x = 963,486.18 × 237,709.24
  4. Step 4: Simplify right side
    642,777.31x = 229,029,567,598.30
  5. Step 5: Solve for x
    x = 229,029,567,598.30/642,777.31
  6. Step 6: Final answer
    x = 356,312.46

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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.