Home / 811,814.07-1,212,743.16-585,240.87

Finding the Fourth Proportional to 811,814.07, 1,212,743.16 and 585,240.87

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Solution

The fourth proportional to 811,814.07, 1,212,743.16 and 585,240.87 is: 874,272.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,814.07 : 1,212,743.16 = 585,240.87 : x
  2. Step 2: Convert to fraction form
    811,814.07/1,212,743.16 = 585,240.87/x
  3. Step 3: Cross multiply
    811,814.07x = 1,212,743.16 × 585,240.87
  4. Step 4: Simplify right side
    811,814.07x = 709,746,862,044.95
  5. Step 5: Solve for x
    x = 709,746,862,044.95/811,814.07
  6. Step 6: Final answer
    x = 874,272.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.