Home / 676,402.20-1,009,310.40-672,465.60

Finding the Fourth Proportional to 676,402.20, 1,009,310.40 and 672,465.60

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Solution

The fourth proportional to 676,402.20, 1,009,310.40 and 672,465.60 is: 1,003,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,402.20 : 1,009,310.40 = 672,465.60 : x
  2. Step 2: Convert to fraction form
    676,402.20/1,009,310.40 = 672,465.60/x
  3. Step 3: Cross multiply
    676,402.20x = 1,009,310.40 × 672,465.60
  4. Step 4: Simplify right side
    676,402.20x = 678,726,523,722.24
  5. Step 5: Solve for x
    x = 678,726,523,722.24/676,402.20
  6. Step 6: Final answer
    x = 1,003,436.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.