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Finding the Fourth Proportional to 565,595.99, 780,527.76 and 310,949

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Solution

The fourth proportional to 565,595.99, 780,527.76 and 310,949 is: 429,112.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,595.99 : 780,527.76 = 310,949 : x
  2. Step 2: Convert to fraction form
    565,595.99/780,527.76 = 310,949/x
  3. Step 3: Cross multiply
    565,595.99x = 780,527.76 × 310,949
  4. Step 4: Simplify right side
    565,595.99x = 242,704,326,444.24
  5. Step 5: Solve for x
    x = 242,704,326,444.24/565,595.99
  6. Step 6: Final answer
    x = 429,112.53

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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.