Home / 4,480,123.60-6,720,185.40-1,640,328.40

Finding the Fourth Proportional to 4,480,123.60, 6,720,185.40 and 1,640,328.40

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Solution

The fourth proportional to 4,480,123.60, 6,720,185.40 and 1,640,328.40 is: 2,460,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480,123.60 : 6,720,185.40 = 1,640,328.40 : x
  2. Step 2: Convert to fraction form
    4,480,123.60/6,720,185.40 = 1,640,328.40/x
  3. Step 3: Cross multiply
    4,480,123.60x = 6,720,185.40 × 1,640,328.40
  4. Step 4: Simplify right side
    4,480,123.60x = 11,023,310,964,885.36
  5. Step 5: Solve for x
    x = 11,023,310,964,885.36/4,480,123.60
  6. Step 6: Final answer
    x = 2,460,492.60

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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.