Home / 750,813.32-1,036,139.12-428,516.96

Finding the Fourth Proportional to 750,813.32, 1,036,139.12 and 428,516.96

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Solution

The fourth proportional to 750,813.32, 1,036,139.12 and 428,516.96 is: 591,362.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,813.32 : 1,036,139.12 = 428,516.96 : x
  2. Step 2: Convert to fraction form
    750,813.32/1,036,139.12 = 428,516.96/x
  3. Step 3: Cross multiply
    750,813.32x = 1,036,139.12 × 428,516.96
  4. Step 4: Simplify right side
    750,813.32x = 444,003,185,839.48
  5. Step 5: Solve for x
    x = 444,003,185,839.48/750,813.32
  6. Step 6: Final answer
    x = 591,362.96

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Double scale
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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.