Home / 900,550.47-1,242,769.46-492,643.55

Finding the Fourth Proportional to 900,550.47, 1,242,769.46 and 492,643.55

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Solution

The fourth proportional to 900,550.47, 1,242,769.46 and 492,643.55 is: 679,853.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,550.47 : 1,242,769.46 = 492,643.55 : x
  2. Step 2: Convert to fraction form
    900,550.47/1,242,769.46 = 492,643.55/x
  3. Step 3: Cross multiply
    900,550.47x = 1,242,769.46 × 492,643.55
  4. Step 4: Simplify right side
    900,550.47x = 612,242,358,605.98
  5. Step 5: Solve for x
    x = 612,242,358,605.98/900,550.47
  6. Step 6: Final answer
    x = 679,853.47

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1.5x scale

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.