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Finding the Fourth Proportional to 612,506.70, 917,010.45 and 549,521.10

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Solution

The fourth proportional to 612,506.70, 917,010.45 and 549,521.10 is: 822,711.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,506.70 : 917,010.45 = 549,521.10 : x
  2. Step 2: Convert to fraction form
    612,506.70/917,010.45 = 549,521.10/x
  3. Step 3: Cross multiply
    612,506.70x = 917,010.45 × 549,521.10
  4. Step 4: Simplify right side
    612,506.70x = 503,916,591,195.50
  5. Step 5: Solve for x
    x = 503,916,591,195.50/612,506.70
  6. Step 6: Final answer
    x = 822,711.97

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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.