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Finding the Fourth Proportional to 648,490.84, 888,428.31 and 624,240.27

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Solution

The fourth proportional to 648,490.84, 888,428.31 and 624,240.27 is: 855,205.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,490.84 : 888,428.31 = 624,240.27 : x
  2. Step 2: Convert to fraction form
    648,490.84/888,428.31 = 624,240.27/x
  3. Step 3: Cross multiply
    648,490.84x = 888,428.31 × 624,240.27
  4. Step 4: Simplify right side
    648,490.84x = 554,592,733,782.55
  5. Step 5: Solve for x
    x = 554,592,733,782.55/648,490.84
  6. Step 6: Final answer
    x = 855,205.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.