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Finding the Fourth Proportional to 702,863.80, 1,054,295.70 and 437,143.30

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Solution

The fourth proportional to 702,863.80, 1,054,295.70 and 437,143.30 is: 655,714.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,863.80 : 1,054,295.70 = 437,143.30 : x
  2. Step 2: Convert to fraction form
    702,863.80/1,054,295.70 = 437,143.30/x
  3. Step 3: Cross multiply
    702,863.80x = 1,054,295.70 × 437,143.30
  4. Step 4: Simplify right side
    702,863.80x = 460,878,301,473.81
  5. Step 5: Solve for x
    x = 460,878,301,473.81/702,863.80
  6. Step 6: Final answer
    x = 655,714.95

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Similar ratio
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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.