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Finding the Fourth Proportional to 617,576.80, 926,408.40 and 243,551.20

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Solution

The fourth proportional to 617,576.80, 926,408.40 and 243,551.20 is: 365,343.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,576.80 : 926,408.40 = 243,551.20 : x
  2. Step 2: Convert to fraction form
    617,576.80/926,408.40 = 243,551.20/x
  3. Step 3: Cross multiply
    617,576.80x = 926,408.40 × 243,551.20
  4. Step 4: Simplify right side
    617,576.80x = 225,627,877,510.08
  5. Step 5: Solve for x
    x = 225,627,877,510.08/617,576.80
  6. Step 6: Final answer
    x = 365,343.84

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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.