Home / 630,428.30-945,772.05-210,005.90

Finding the Fourth Proportional to 630,428.30, 945,772.05 and 210,005.90

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Solution

The fourth proportional to 630,428.30, 945,772.05 and 210,005.90 is: 315,052.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,428.30 : 945,772.05 = 210,005.90 : x
  2. Step 2: Convert to fraction form
    630,428.30/945,772.05 = 210,005.90/x
  3. Step 3: Cross multiply
    630,428.30x = 945,772.05 × 210,005.90
  4. Step 4: Simplify right side
    630,428.30x = 198,617,710,555.10
  5. Step 5: Solve for x
    x = 198,617,710,555.10/630,428.30
  6. Step 6: Final answer
    x = 315,052.02

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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.