Home / 926,427.60-1,389,641.40-393,814.80

Finding the Fourth Proportional to 926,427.60, 1,389,641.40 and 393,814.80

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Solution

The fourth proportional to 926,427.60, 1,389,641.40 and 393,814.80 is: 590,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,427.60 : 1,389,641.40 = 393,814.80 : x
  2. Step 2: Convert to fraction form
    926,427.60/1,389,641.40 = 393,814.80/x
  3. Step 3: Cross multiply
    926,427.60x = 1,389,641.40 × 393,814.80
  4. Step 4: Simplify right side
    926,427.60x = 547,261,350,012.72
  5. Step 5: Solve for x
    x = 547,261,350,012.72/926,427.60
  6. Step 6: Final answer
    x = 590,722.20

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Similar ratio
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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.