Home / 790,395.52-1,090,448.08-518,613.44

Finding the Fourth Proportional to 790,395.52, 1,090,448.08 and 518,613.44

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Solution

The fourth proportional to 790,395.52, 1,090,448.08 and 518,613.44 is: 715,491.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,395.52 : 1,090,448.08 = 518,613.44 : x
  2. Step 2: Convert to fraction form
    790,395.52/1,090,448.08 = 518,613.44/x
  3. Step 3: Cross multiply
    790,395.52x = 1,090,448.08 × 518,613.44
  4. Step 4: Simplify right side
    790,395.52x = 565,521,029,910.20
  5. Step 5: Solve for x
    x = 565,521,029,910.20/790,395.52
  6. Step 6: Final answer
    x = 715,491.19

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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.