Home / 435,979.02-653,022.10-210,867.40

Finding the Fourth Proportional to 435,979.02, 653,022.10 and 210,867.40

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Solution

The fourth proportional to 435,979.02, 653,022.10 and 210,867.40 is: 315,843.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,979.02 : 653,022.10 = 210,867.40 : x
  2. Step 2: Convert to fraction form
    435,979.02/653,022.10 = 210,867.40/x
  3. Step 3: Cross multiply
    435,979.02x = 653,022.10 × 210,867.40
  4. Step 4: Simplify right side
    435,979.02x = 137,701,072,369.54
  5. Step 5: Solve for x
    x = 137,701,072,369.54/435,979.02
  6. Step 6: Final answer
    x = 315,843.35

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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.