Home / 711,228.75-1,065,719.56-577,455.43

Finding the Fourth Proportional to 711,228.75, 1,065,719.56 and 577,455.43

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Solution

The fourth proportional to 711,228.75, 1,065,719.56 and 577,455.43 is: 865,270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,228.75 : 1,065,719.56 = 577,455.43 : x
  2. Step 2: Convert to fraction form
    711,228.75/1,065,719.56 = 577,455.43/x
  3. Step 3: Cross multiply
    711,228.75x = 1,065,719.56 × 577,455.43
  4. Step 4: Simplify right side
    711,228.75x = 615,405,544,128.13
  5. Step 5: Solve for x
    x = 615,405,544,128.13/711,228.75
  6. Step 6: Final answer
    x = 865,270.90

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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.