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Finding the Fourth Proportional to 674,302.50, 930,564.18 and 387,822.24

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Solution

The fourth proportional to 674,302.50, 930,564.18 and 387,822.24 is: 535,210.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,302.50 : 930,564.18 = 387,822.24 : x
  2. Step 2: Convert to fraction form
    674,302.50/930,564.18 = 387,822.24/x
  3. Step 3: Cross multiply
    674,302.50x = 930,564.18 × 387,822.24
  4. Step 4: Simplify right side
    674,302.50x = 360,893,484,751.36
  5. Step 5: Solve for x
    x = 360,893,484,751.36/674,302.50
  6. Step 6: Final answer
    x = 535,210.06

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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.