Home / 671,602.20-1,007,403.30-665,381.40

Finding the Fourth Proportional to 671,602.20, 1,007,403.30 and 665,381.40

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Solution

The fourth proportional to 671,602.20, 1,007,403.30 and 665,381.40 is: 998,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,602.20 : 1,007,403.30 = 665,381.40 : x
  2. Step 2: Convert to fraction form
    671,602.20/1,007,403.30 = 665,381.40/x
  3. Step 3: Cross multiply
    671,602.20x = 1,007,403.30 × 665,381.40
  4. Step 4: Simplify right side
    671,602.20x = 670,307,418,118.62
  5. Step 5: Solve for x
    x = 670,307,418,118.62/671,602.20
  6. Step 6: Final answer
    x = 998,072.10

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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.