Home / 912,464.20-1,369,473.90-407,801.80

Finding the Fourth Proportional to 912,464.20, 1,369,473.90 and 407,801.80

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Solution

The fourth proportional to 912,464.20, 1,369,473.90 and 407,801.80 is: 612,050.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,464.20 : 1,369,473.90 = 407,801.80 : x
  2. Step 2: Convert to fraction form
    912,464.20/1,369,473.90 = 407,801.80/x
  3. Step 3: Cross multiply
    912,464.20x = 1,369,473.90 × 407,801.80
  4. Step 4: Simplify right side
    912,464.20x = 558,473,921,473.02
  5. Step 5: Solve for x
    x = 558,473,921,473.02/912,464.20
  6. Step 6: Final answer
    x = 612,050.23

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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.