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Finding the Fourth Proportional to 565,726.04, 780,722.02 and 311,096.60

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Solution

The fourth proportional to 565,726.04, 780,722.02 and 311,096.60 is: 429,324.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,726.04 : 780,722.02 = 311,096.60 : x
  2. Step 2: Convert to fraction form
    565,726.04/780,722.02 = 311,096.60/x
  3. Step 3: Cross multiply
    565,726.04x = 780,722.02 × 311,096.60
  4. Step 4: Simplify right side
    565,726.04x = 242,879,965,967.13
  5. Step 5: Solve for x
    x = 242,879,965,967.13/565,726.04
  6. Step 6: Final answer
    x = 429,324.35

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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.