Home / 930,386.28-1,283,928.20-522,505.31

Finding the Fourth Proportional to 930,386.28, 1,283,928.20 and 522,505.31

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Solution

The fourth proportional to 930,386.28, 1,283,928.20 and 522,505.31 is: 721,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,386.28 : 1,283,928.20 = 522,505.31 : x
  2. Step 2: Convert to fraction form
    930,386.28/1,283,928.20 = 522,505.31/x
  3. Step 3: Cross multiply
    930,386.28x = 1,283,928.20 × 522,505.31
  4. Step 4: Simplify right side
    930,386.28x = 670,859,306,674.83
  5. Step 5: Solve for x
    x = 670,859,306,674.83/930,386.28
  6. Step 6: Final answer
    x = 721,054.60

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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.