Home / 642,565.20-963,556.20-243,073.20

Finding the Fourth Proportional to 642,565.20, 963,556.20 and 243,073.20

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Solution

The fourth proportional to 642,565.20, 963,556.20 and 243,073.20 is: 364,499.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,565.20 : 963,556.20 = 243,073.20 : x
  2. Step 2: Convert to fraction form
    642,565.20/963,556.20 = 243,073.20/x
  3. Step 3: Cross multiply
    642,565.20x = 963,556.20 × 243,073.20
  4. Step 4: Simplify right side
    642,565.20x = 234,214,688,913.84
  5. Step 5: Solve for x
    x = 234,214,688,913.84/642,565.20
  6. Step 6: Final answer
    x = 364,499.49

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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.