Home / 1,490,271.56-2,056,575-811,208

Finding the Fourth Proportional to 1,490,271.56, 2,056,575 and 811,208

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Solution

The fourth proportional to 1,490,271.56, 2,056,575 and 811,208 is: 1,119,467.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,271.56 : 2,056,575 = 811,208 : x
  2. Step 2: Convert to fraction form
    1,490,271.56/2,056,575 = 811,208/x
  3. Step 3: Cross multiply
    1,490,271.56x = 2,056,575 × 811,208
  4. Step 4: Simplify right side
    1,490,271.56x = 1,668,310,092,600
  5. Step 5: Solve for x
    x = 1,668,310,092,600/1,490,271.56
  6. Step 6: Final answer
    x = 1,119,467.17

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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.