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Finding the Fourth Proportional to 636,907.86, 877,912.83 and 483,446.07

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Solution

The fourth proportional to 636,907.86, 877,912.83 and 483,446.07 is: 666,381.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,907.86 : 877,912.83 = 483,446.07 : x
  2. Step 2: Convert to fraction form
    636,907.86/877,912.83 = 483,446.07/x
  3. Step 3: Cross multiply
    636,907.86x = 877,912.83 × 483,446.07
  4. Step 4: Simplify right side
    636,907.86x = 424,423,507,466.08
  5. Step 5: Solve for x
    x = 424,423,507,466.08/636,907.86
  6. Step 6: Final answer
    x = 666,381.33

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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.