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Finding the Fourth Proportional to 554,442.60, 831,663.90 and 498,455.40

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Solution

The fourth proportional to 554,442.60, 831,663.90 and 498,455.40 is: 747,683.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,442.60 : 831,663.90 = 498,455.40 : x
  2. Step 2: Convert to fraction form
    554,442.60/831,663.90 = 498,455.40/x
  3. Step 3: Cross multiply
    554,442.60x = 831,663.90 × 498,455.40
  4. Step 4: Simplify right side
    554,442.60x = 414,547,361,940.06
  5. Step 5: Solve for x
    x = 414,547,361,940.06/554,442.60
  6. Step 6: Final answer
    x = 747,683.10

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Similar ratio
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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.