Home / 663,637.23-915,897.13-377,200.37

Finding the Fourth Proportional to 663,637.23, 915,897.13 and 377,200.37

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Solution

The fourth proportional to 663,637.23, 915,897.13 and 377,200.37 is: 520,580.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,637.23 : 915,897.13 = 377,200.37 : x
  2. Step 2: Convert to fraction form
    663,637.23/915,897.13 = 377,200.37/x
  3. Step 3: Cross multiply
    663,637.23x = 915,897.13 × 377,200.37
  4. Step 4: Simplify right side
    663,637.23x = 345,476,736,317.94
  5. Step 5: Solve for x
    x = 345,476,736,317.94/663,637.23
  6. Step 6: Final answer
    x = 520,580.70

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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.