Home / 947,217.30-1,420,898.04-316,130.10

Finding the Fourth Proportional to 947,217.30, 1,420,898.04 and 316,130.10

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Solution

The fourth proportional to 947,217.30, 1,420,898.04 and 316,130.10 is: 474,219.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,217.30 : 1,420,898.04 = 316,130.10 : x
  2. Step 2: Convert to fraction form
    947,217.30/1,420,898.04 = 316,130.10/x
  3. Step 3: Cross multiply
    947,217.30x = 1,420,898.04 × 316,130.10
  4. Step 4: Simplify right side
    947,217.30x = 449,188,639,475.00
  5. Step 5: Solve for x
    x = 449,188,639,475.00/947,217.30
  6. Step 6: Final answer
    x = 474,219.21

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Double scale
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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.