Home / 684,137.80-1,026,206.70-432,195.40

Finding the Fourth Proportional to 684,137.80, 1,026,206.70 and 432,195.40

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Solution

The fourth proportional to 684,137.80, 1,026,206.70 and 432,195.40 is: 648,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,137.80 : 1,026,206.70 = 432,195.40 : x
  2. Step 2: Convert to fraction form
    684,137.80/1,026,206.70 = 432,195.40/x
  3. Step 3: Cross multiply
    684,137.80x = 1,026,206.70 × 432,195.40
  4. Step 4: Simplify right side
    684,137.80x = 443,521,815,189.18
  5. Step 5: Solve for x
    x = 443,521,815,189.18/684,137.80
  6. Step 6: Final answer
    x = 648,293.10

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Similar ratio
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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.