Home / 807,148.80-1,208,390.40-492,220.80

Finding the Fourth Proportional to 807,148.80, 1,208,390.40 and 492,220.80

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Solution

The fourth proportional to 807,148.80, 1,208,390.40 and 492,220.80 is: 736,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,148.80 : 1,208,390.40 = 492,220.80 : x
  2. Step 2: Convert to fraction form
    807,148.80/1,208,390.40 = 492,220.80/x
  3. Step 3: Cross multiply
    807,148.80x = 1,208,390.40 × 492,220.80
  4. Step 4: Simplify right side
    807,148.80x = 594,794,889,400.32
  5. Step 5: Solve for x
    x = 594,794,889,400.32/807,148.80
  6. Step 6: Final answer
    x = 736,908.60

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1.5x scale

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.