Home / 577,406.80-865,126.05-492,769.90

Finding the Fourth Proportional to 577,406.80, 865,126.05 and 492,769.90

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Solution

The fourth proportional to 577,406.80, 865,126.05 and 492,769.90 is: 738,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,406.80 : 865,126.05 = 492,769.90 : x
  2. Step 2: Convert to fraction form
    577,406.80/865,126.05 = 492,769.90/x
  3. Step 3: Cross multiply
    577,406.80x = 865,126.05 × 492,769.90
  4. Step 4: Simplify right side
    577,406.80x = 426,308,077,145.90
  5. Step 5: Solve for x
    x = 426,308,077,145.90/577,406.80
  6. Step 6: Final answer
    x = 738,314.96

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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.