Home / 566,280.21-781,466.83-311,631.40

Finding the Fourth Proportional to 566,280.21, 781,466.83 and 311,631.40

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Solution

The fourth proportional to 566,280.21, 781,466.83 and 311,631.40 is: 430,051.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,280.21 : 781,466.83 = 311,631.40 : x
  2. Step 2: Convert to fraction form
    566,280.21/781,466.83 = 311,631.40/x
  3. Step 3: Cross multiply
    566,280.21x = 781,466.83 × 311,631.40
  4. Step 4: Simplify right side
    566,280.21x = 243,529,602,286.46
  5. Step 5: Solve for x
    x = 243,529,602,286.46/566,280.21
  6. Step 6: Final answer
    x = 430,051.41

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1.5x scale

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.