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Finding the Fourth Proportional to 565,598.18, 780,518.49 and 310,947.14

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Solution

The fourth proportional to 565,598.18, 780,518.49 and 310,947.14 is: 429,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,598.18 : 780,518.49 = 310,947.14 : x
  2. Step 2: Convert to fraction form
    565,598.18/780,518.49 = 310,947.14/x
  3. Step 3: Cross multiply
    565,598.18x = 780,518.49 × 310,947.14
  4. Step 4: Simplify right side
    565,598.18x = 242,699,992,182.62
  5. Step 5: Solve for x
    x = 242,699,992,182.62/565,598.18
  6. Step 6: Final answer
    x = 429,103.21

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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.