Home / 932,071.25-1,286,145.30-518,510.27

Finding the Fourth Proportional to 932,071.25, 1,286,145.30 and 518,510.27

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Solution

The fourth proportional to 932,071.25, 1,286,145.30 and 518,510.27 is: 715,481.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,071.25 : 1,286,145.30 = 518,510.27 : x
  2. Step 2: Convert to fraction form
    932,071.25/1,286,145.30 = 518,510.27/x
  3. Step 3: Cross multiply
    932,071.25x = 1,286,145.30 × 518,510.27
  4. Step 4: Simplify right side
    932,071.25x = 666,879,540,331.51
  5. Step 5: Solve for x
    x = 666,879,540,331.51/932,071.25
  6. Step 6: Final answer
    x = 715,481.29

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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.