Home / 819,783.29-1,131,302.95-457,230.64

Finding the Fourth Proportional to 819,783.29, 1,131,302.95 and 457,230.64

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Solution

The fourth proportional to 819,783.29, 1,131,302.95 and 457,230.64 is: 630,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,783.29 : 1,131,302.95 = 457,230.64 : x
  2. Step 2: Convert to fraction form
    819,783.29/1,131,302.95 = 457,230.64/x
  3. Step 3: Cross multiply
    819,783.29x = 1,131,302.95 × 457,230.64
  4. Step 4: Simplify right side
    819,783.29x = 517,266,371,862.39
  5. Step 5: Solve for x
    x = 517,266,371,862.39/819,783.29
  6. Step 6: Final answer
    x = 630,979.40

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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.