Home / 1,490,335-2,056,662.54-811,276.60

Finding the Fourth Proportional to 1,490,335, 2,056,662.54 and 811,276.60

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Solution

The fourth proportional to 1,490,335, 2,056,662.54 and 811,276.60 is: 1,119,561.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,335 : 2,056,662.54 = 811,276.60 : x
  2. Step 2: Convert to fraction form
    1,490,335/2,056,662.54 = 811,276.60/x
  3. Step 3: Cross multiply
    1,490,335x = 2,056,662.54 × 811,276.60
  4. Step 4: Simplify right side
    1,490,335x = 1,668,522,192,798.56
  5. Step 5: Solve for x
    x = 1,668,522,192,798.56/1,490,335
  6. Step 6: Final answer
    x = 1,119,561.84

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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.