Home / 643,087.20-964,339.20-243,595.20

Finding the Fourth Proportional to 643,087.20, 964,339.20 and 243,595.20

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Solution

The fourth proportional to 643,087.20, 964,339.20 and 243,595.20 is: 365,282.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,087.20 : 964,339.20 = 243,595.20 : x
  2. Step 2: Convert to fraction form
    643,087.20/964,339.20 = 243,595.20/x
  3. Step 3: Cross multiply
    643,087.20x = 964,339.20 × 243,595.20
  4. Step 4: Simplify right side
    643,087.20x = 234,908,400,291.84
  5. Step 5: Solve for x
    x = 234,908,400,291.84/643,087.20
  6. Step 6: Final answer
    x = 365,282.34

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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.