Home / 743,433.98-1,025,989.65-421,146.72

Finding the Fourth Proportional to 743,433.98, 1,025,989.65 and 421,146.72

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Solution

The fourth proportional to 743,433.98, 1,025,989.65 and 421,146.72 is: 581,211.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,433.98 : 1,025,989.65 = 421,146.72 : x
  2. Step 2: Convert to fraction form
    743,433.98/1,025,989.65 = 421,146.72/x
  3. Step 3: Cross multiply
    743,433.98x = 1,025,989.65 × 421,146.72
  4. Step 4: Simplify right side
    743,433.98x = 432,092,175,851.45
  5. Step 5: Solve for x
    x = 432,092,175,851.45/743,433.98
  6. Step 6: Final answer
    x = 581,211.23

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Double scale
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1.5x scale

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.