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Finding the Fourth Proportional to 565,282.79, 780,133.65 and 323,641.16

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Solution

The fourth proportional to 565,282.79, 780,133.65 and 323,641.16 is: 446,649.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,282.79 : 780,133.65 = 323,641.16 : x
  2. Step 2: Convert to fraction form
    565,282.79/780,133.65 = 323,641.16/x
  3. Step 3: Cross multiply
    565,282.79x = 780,133.65 × 323,641.16
  4. Step 4: Simplify right side
    565,282.79x = 252,483,359,441.03
  5. Step 5: Solve for x
    x = 252,483,359,441.03/565,282.79
  6. Step 6: Final answer
    x = 446,649.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.