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Finding the Fourth Proportional to 560,502.08, 773,147.65 and 399,409.18

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Solution

The fourth proportional to 560,502.08, 773,147.65 and 399,409.18 is: 550,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,502.08 : 773,147.65 = 399,409.18 : x
  2. Step 2: Convert to fraction form
    560,502.08/773,147.65 = 399,409.18/x
  3. Step 3: Cross multiply
    560,502.08x = 773,147.65 × 399,409.18
  4. Step 4: Simplify right side
    560,502.08x = 308,802,268,905.43
  5. Step 5: Solve for x
    x = 308,802,268,905.43/560,502.08
  6. Step 6: Final answer
    x = 550,938.67

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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.