Home / 430,595.84-645,916.44-131,053.52

Finding the Fourth Proportional to 430,595.84, 645,916.44 and 131,053.52

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Solution

The fourth proportional to 430,595.84, 645,916.44 and 131,053.52 is: 196,587.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,595.84 : 645,916.44 = 131,053.52 : x
  2. Step 2: Convert to fraction form
    430,595.84/645,916.44 = 131,053.52/x
  3. Step 3: Cross multiply
    430,595.84x = 645,916.44 × 131,053.52
  4. Step 4: Simplify right side
    430,595.84x = 84,649,623,087.87
  5. Step 5: Solve for x
    x = 84,649,623,087.87/430,595.84
  6. Step 6: Final answer
    x = 196,587.18

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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.