Home / 585,139.68-877,987.08-405,501.39

Finding the Fourth Proportional to 585,139.68, 877,987.08 and 405,501.39

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Solution

The fourth proportional to 585,139.68, 877,987.08 and 405,501.39 is: 608,444.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,139.68 : 877,987.08 = 405,501.39 : x
  2. Step 2: Convert to fraction form
    585,139.68/877,987.08 = 405,501.39/x
  3. Step 3: Cross multiply
    585,139.68x = 877,987.08 × 405,501.39
  4. Step 4: Simplify right side
    585,139.68x = 356,024,981,342.04
  5. Step 5: Solve for x
    x = 356,024,981,342.04/585,139.68
  6. Step 6: Final answer
    x = 608,444.43

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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.