Home / 912,975.40-1,370,586.30-576,015.40

Finding the Fourth Proportional to 912,975.40, 1,370,586.30 and 576,015.40

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Solution

The fourth proportional to 912,975.40, 1,370,586.30 and 576,015.40 is: 864,731.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,975.40 : 1,370,586.30 = 576,015.40 : x
  2. Step 2: Convert to fraction form
    912,975.40/1,370,586.30 = 576,015.40/x
  3. Step 3: Cross multiply
    912,975.40x = 1,370,586.30 × 576,015.40
  4. Step 4: Simplify right side
    912,975.40x = 789,478,815,829.02
  5. Step 5: Solve for x
    x = 789,478,815,829.02/912,975.40
  6. Step 6: Final answer
    x = 864,731.75

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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.