Home / 1,091,426.60-1,637,139.90-343,472.60

Finding the Fourth Proportional to 1,091,426.60, 1,637,139.90 and 343,472.60

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Solution

The fourth proportional to 1,091,426.60, 1,637,139.90 and 343,472.60 is: 515,208.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,426.60 : 1,637,139.90 = 343,472.60 : x
  2. Step 2: Convert to fraction form
    1,091,426.60/1,637,139.90 = 343,472.60/x
  3. Step 3: Cross multiply
    1,091,426.60x = 1,637,139.90 × 343,472.60
  4. Step 4: Simplify right side
    1,091,426.60x = 562,312,698,016.74
  5. Step 5: Solve for x
    x = 562,312,698,016.74/1,091,426.60
  6. Step 6: Final answer
    x = 515,208.90

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Double scale
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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.