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Finding the Fourth Proportional to 553,688.80, 831,454.80 and 304,549.60

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Solution

The fourth proportional to 553,688.80, 831,454.80 and 304,549.60 is: 457,331.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,688.80 : 831,454.80 = 304,549.60 : x
  2. Step 2: Convert to fraction form
    553,688.80/831,454.80 = 304,549.60/x
  3. Step 3: Cross multiply
    553,688.80x = 831,454.80 × 304,549.60
  4. Step 4: Simplify right side
    553,688.80x = 253,219,226,758.08
  5. Step 5: Solve for x
    x = 253,219,226,758.08/553,688.80
  6. Step 6: Final answer
    x = 457,331.31

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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.