Home / 750,830.36-1,036,162.60-428,533.96

Finding the Fourth Proportional to 750,830.36, 1,036,162.60 and 428,533.96

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Solution

The fourth proportional to 750,830.36, 1,036,162.60 and 428,533.96 is: 591,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,830.36 : 1,036,162.60 = 428,533.96 : x
  2. Step 2: Convert to fraction form
    750,830.36/1,036,162.60 = 428,533.96/x
  3. Step 3: Cross multiply
    750,830.36x = 1,036,162.60 × 428,533.96
  4. Step 4: Simplify right side
    750,830.36x = 444,030,862,181.90
  5. Step 5: Solve for x
    x = 444,030,862,181.90/750,830.36
  6. Step 6: Final answer
    x = 591,386.40

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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.