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Finding the Fourth Proportional to 636,835.53, 955,253.12 and 436,548.71

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Solution

The fourth proportional to 636,835.53, 955,253.12 and 436,548.71 is: 654,822.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,835.53 : 955,253.12 = 436,548.71 : x
  2. Step 2: Convert to fraction form
    636,835.53/955,253.12 = 436,548.71/x
  3. Step 3: Cross multiply
    636,835.53x = 955,253.12 × 436,548.71
  4. Step 4: Simplify right side
    636,835.53x = 417,014,510,300.47
  5. Step 5: Solve for x
    x = 417,014,510,300.47/636,835.53
  6. Step 6: Final answer
    x = 654,822.93

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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.