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Finding the Fourth Proportional to 453,809.40, 680,714.10 and 217,613.40

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Solution

The fourth proportional to 453,809.40, 680,714.10 and 217,613.40 is: 326,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,809.40 : 680,714.10 = 217,613.40 : x
  2. Step 2: Convert to fraction form
    453,809.40/680,714.10 = 217,613.40/x
  3. Step 3: Cross multiply
    453,809.40x = 680,714.10 × 217,613.40
  4. Step 4: Simplify right side
    453,809.40x = 148,132,509,728.94
  5. Step 5: Solve for x
    x = 148,132,509,728.94/453,809.40
  6. Step 6: Final answer
    x = 326,420.10

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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.