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Finding the Fourth Proportional to 560,317.50, 773,238.15 and 305,669.70

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Solution

The fourth proportional to 560,317.50, 773,238.15 and 305,669.70 is: 421,824.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,317.50 : 773,238.15 = 305,669.70 : x
  2. Step 2: Convert to fraction form
    560,317.50/773,238.15 = 305,669.70/x
  3. Step 3: Cross multiply
    560,317.50x = 773,238.15 × 305,669.70
  4. Step 4: Simplify right side
    560,317.50x = 236,355,473,339.06
  5. Step 5: Solve for x
    x = 236,355,473,339.06/560,317.50
  6. Step 6: Final answer
    x = 421,824.19

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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.