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Finding the Fourth Proportional to 671,340.10, 926,783.22 and 442,045.30

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Solution

The fourth proportional to 671,340.10, 926,783.22 and 442,045.30 is: 610,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,340.10 : 926,783.22 = 442,045.30 : x
  2. Step 2: Convert to fraction form
    671,340.10/926,783.22 = 442,045.30/x
  3. Step 3: Cross multiply
    671,340.10x = 926,783.22 × 442,045.30
  4. Step 4: Simplify right side
    671,340.10x = 409,680,166,519.87
  5. Step 5: Solve for x
    x = 409,680,166,519.87/671,340.10
  6. Step 6: Final answer
    x = 610,242.36

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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.