Home / 1,072,900-1,480,549.08-643,096.72

Finding the Fourth Proportional to 1,072,900, 1,480,549.08 and 643,096.72

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Solution

The fourth proportional to 1,072,900, 1,480,549.08 and 643,096.72 is: 887,441.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,900 : 1,480,549.08 = 643,096.72 : x
  2. Step 2: Convert to fraction form
    1,072,900/1,480,549.08 = 643,096.72/x
  3. Step 3: Cross multiply
    1,072,900x = 1,480,549.08 × 643,096.72
  4. Step 4: Simplify right side
    1,072,900x = 952,136,257,147.02
  5. Step 5: Solve for x
    x = 952,136,257,147.02/1,072,900
  6. Step 6: Final answer
    x = 887,441.75

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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.