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Finding the Fourth Proportional to 609,870.25, 841,633.10 and 355,237.84

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Solution

The fourth proportional to 609,870.25, 841,633.10 and 355,237.84 is: 490,235.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,870.25 : 841,633.10 = 355,237.84 : x
  2. Step 2: Convert to fraction form
    609,870.25/841,633.10 = 355,237.84/x
  3. Step 3: Cross multiply
    609,870.25x = 841,633.10 × 355,237.84
  4. Step 4: Simplify right side
    609,870.25x = 298,979,924,516.50
  5. Step 5: Solve for x
    x = 298,979,924,516.50/609,870.25
  6. Step 6: Final answer
    x = 490,235.30

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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.