Home / 765,450.31-1,148,433.59-338,927.91

Finding the Fourth Proportional to 765,450.31, 1,148,433.59 and 338,927.91

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Solution

The fourth proportional to 765,450.31, 1,148,433.59 and 338,927.91 is: 508,506.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,450.31 : 1,148,433.59 = 338,927.91 : x
  2. Step 2: Convert to fraction form
    765,450.31/1,148,433.59 = 338,927.91/x
  3. Step 3: Cross multiply
    765,450.31x = 1,148,433.59 × 338,927.91
  4. Step 4: Simplify right side
    765,450.31x = 389,236,196,432.50
  5. Step 5: Solve for x
    x = 389,236,196,432.50/765,450.31
  6. Step 6: Final answer
    x = 508,506.16

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1.5x scale

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.