Home / 1,490,326-2,056,650.12-811,267.60

Finding the Fourth Proportional to 1,490,326, 2,056,650.12 and 811,267.60

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Solution

The fourth proportional to 1,490,326, 2,056,650.12 and 811,267.60 is: 1,119,549.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,326 : 2,056,650.12 = 811,267.60 : x
  2. Step 2: Convert to fraction form
    1,490,326/2,056,650.12 = 811,267.60/x
  3. Step 3: Cross multiply
    1,490,326x = 2,056,650.12 × 811,267.60
  4. Step 4: Simplify right side
    1,490,326x = 1,668,493,606,892.11
  5. Step 5: Solve for x
    x = 1,668,493,606,892.11/1,490,326
  6. Step 6: Final answer
    x = 1,119,549.42

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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.