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Finding the Fourth Proportional to 554,133.40, 831,200.10 and 317,281.30

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Solution

The fourth proportional to 554,133.40, 831,200.10 and 317,281.30 is: 475,921.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,133.40 : 831,200.10 = 317,281.30 : x
  2. Step 2: Convert to fraction form
    554,133.40/831,200.10 = 317,281.30/x
  3. Step 3: Cross multiply
    554,133.40x = 831,200.10 × 317,281.30
  4. Step 4: Simplify right side
    554,133.40x = 263,724,248,288.13
  5. Step 5: Solve for x
    x = 263,724,248,288.13/554,133.40
  6. Step 6: Final answer
    x = 475,921.95

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Similar ratio
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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.