Home / 765,886.49-1,148,297.72-339,189.79

Finding the Fourth Proportional to 765,886.49, 1,148,297.72 and 339,189.79

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Solution

The fourth proportional to 765,886.49, 1,148,297.72 and 339,189.79 is: 508,549.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,886.49 : 1,148,297.72 = 339,189.79 : x
  2. Step 2: Convert to fraction form
    765,886.49/1,148,297.72 = 339,189.79/x
  3. Step 3: Cross multiply
    765,886.49x = 1,148,297.72 × 339,189.79
  4. Step 4: Simplify right side
    765,886.49x = 389,490,862,504.28
  5. Step 5: Solve for x
    x = 389,490,862,504.28/765,886.49
  6. Step 6: Final answer
    x = 508,549.07

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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.