Home / 813,498.16-1,122,638.76-446,009.84

Finding the Fourth Proportional to 813,498.16, 1,122,638.76 and 446,009.84

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Solution

The fourth proportional to 813,498.16, 1,122,638.76 and 446,009.84 is: 615,499.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,498.16 : 1,122,638.76 = 446,009.84 : x
  2. Step 2: Convert to fraction form
    813,498.16/1,122,638.76 = 446,009.84/x
  3. Step 3: Cross multiply
    813,498.16x = 1,122,638.76 × 446,009.84
  4. Step 4: Simplify right side
    813,498.16x = 500,707,933,725.40
  5. Step 5: Solve for x
    x = 500,707,933,725.40/813,498.16
  6. Step 6: Final answer
    x = 615,499.77

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Double scale
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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.