Home / 912,090.40-1,368,135.60-576,167.20

Finding the Fourth Proportional to 912,090.40, 1,368,135.60 and 576,167.20

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Solution

The fourth proportional to 912,090.40, 1,368,135.60 and 576,167.20 is: 864,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,090.40 : 1,368,135.60 = 576,167.20 : x
  2. Step 2: Convert to fraction form
    912,090.40/1,368,135.60 = 576,167.20/x
  3. Step 3: Cross multiply
    912,090.40x = 1,368,135.60 × 576,167.20
  4. Step 4: Simplify right side
    912,090.40x = 788,274,857,872.32
  5. Step 5: Solve for x
    x = 788,274,857,872.32/912,090.40
  6. Step 6: Final answer
    x = 864,250.80

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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.