Home / 763,304.30-1,144,203.15-426,506.30

Finding the Fourth Proportional to 763,304.30, 1,144,203.15 and 426,506.30

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Solution

The fourth proportional to 763,304.30, 1,144,203.15 and 426,506.30 is: 639,338.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,304.30 : 1,144,203.15 = 426,506.30 : x
  2. Step 2: Convert to fraction form
    763,304.30/1,144,203.15 = 426,506.30/x
  3. Step 3: Cross multiply
    763,304.30x = 1,144,203.15 × 426,506.30
  4. Step 4: Simplify right side
    763,304.30x = 488,009,851,954.85
  5. Step 5: Solve for x
    x = 488,009,851,954.85/763,304.30
  6. Step 6: Final answer
    x = 639,338.53

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Double scale
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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.