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Finding the Fourth Proportional to 556,085.60, 834,128.40 and 331,699.40

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Solution

The fourth proportional to 556,085.60, 834,128.40 and 331,699.40 is: 497,549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,085.60 : 834,128.40 = 331,699.40 : x
  2. Step 2: Convert to fraction form
    556,085.60/834,128.40 = 331,699.40/x
  3. Step 3: Cross multiply
    556,085.60x = 834,128.40 × 331,699.40
  4. Step 4: Simplify right side
    556,085.60x = 276,679,889,802.96
  5. Step 5: Solve for x
    x = 276,679,889,802.96/556,085.60
  6. Step 6: Final answer
    x = 497,549.10

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Similar ratio
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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.