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Finding the Fourth Proportional to 656,173.85, 905,486.46 and 369,710.87

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Solution

The fourth proportional to 656,173.85, 905,486.46 and 369,710.87 is: 510,182.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,173.85 : 905,486.46 = 369,710.87 : x
  2. Step 2: Convert to fraction form
    656,173.85/905,486.46 = 369,710.87/x
  3. Step 3: Cross multiply
    656,173.85x = 905,486.46 × 369,710.87
  4. Step 4: Simplify right side
    656,173.85x = 334,768,186,899.82
  5. Step 5: Solve for x
    x = 334,768,186,899.82/656,173.85
  6. Step 6: Final answer
    x = 510,182.15

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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.