Home / 770,914.80-1,154,688.12-320,269.32

Finding the Fourth Proportional to 770,914.80, 1,154,688.12 and 320,269.32

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Solution

The fourth proportional to 770,914.80, 1,154,688.12 and 320,269.32 is: 479,704.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,914.80 : 1,154,688.12 = 320,269.32 : x
  2. Step 2: Convert to fraction form
    770,914.80/1,154,688.12 = 320,269.32/x
  3. Step 3: Cross multiply
    770,914.80x = 1,154,688.12 × 320,269.32
  4. Step 4: Simplify right side
    770,914.80x = 369,811,179,004.48
  5. Step 5: Solve for x
    x = 369,811,179,004.48/770,914.80
  6. Step 6: Final answer
    x = 479,704.34

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.