Home / 969,969.60-1,454,954.40-438,091.20

Finding the Fourth Proportional to 969,969.60, 1,454,954.40 and 438,091.20

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Solution

The fourth proportional to 969,969.60, 1,454,954.40 and 438,091.20 is: 657,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,969.60 : 1,454,954.40 = 438,091.20 : x
  2. Step 2: Convert to fraction form
    969,969.60/1,454,954.40 = 438,091.20/x
  3. Step 3: Cross multiply
    969,969.60x = 1,454,954.40 × 438,091.20
  4. Step 4: Simplify right side
    969,969.60x = 637,402,719,041.28
  5. Step 5: Solve for x
    x = 637,402,719,041.28/969,969.60
  6. Step 6: Final answer
    x = 657,136.80

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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.