Home / 820,602.72-1,132,488.81-458,097.35

Finding the Fourth Proportional to 820,602.72, 1,132,488.81 and 458,097.35

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Solution

The fourth proportional to 820,602.72, 1,132,488.81 and 458,097.35 is: 632,206.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,602.72 : 1,132,488.81 = 458,097.35 : x
  2. Step 2: Convert to fraction form
    820,602.72/1,132,488.81 = 458,097.35/x
  3. Step 3: Cross multiply
    820,602.72x = 1,132,488.81 × 458,097.35
  4. Step 4: Simplify right side
    820,602.72x = 518,790,117,103.21
  5. Step 5: Solve for x
    x = 518,790,117,103.21/820,602.72
  6. Step 6: Final answer
    x = 632,206.19

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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.