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Finding the Fourth Proportional to 504,352.42, 696,006.21 and 278,001.70

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Solution

The fourth proportional to 504,352.42, 696,006.21 and 278,001.70 is: 383,642.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,352.42 : 696,006.21 = 278,001.70 : x
  2. Step 2: Convert to fraction form
    504,352.42/696,006.21 = 278,001.70/x
  3. Step 3: Cross multiply
    504,352.42x = 696,006.21 × 278,001.70
  4. Step 4: Simplify right side
    504,352.42x = 193,490,909,590.56
  5. Step 5: Solve for x
    x = 193,490,909,590.56/504,352.42
  6. Step 6: Final answer
    x = 383,642.27

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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.