Home / 987,549.70-1,481,324.55-828,117.40

Finding the Fourth Proportional to 987,549.70, 1,481,324.55 and 828,117.40

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Solution

The fourth proportional to 987,549.70, 1,481,324.55 and 828,117.40 is: 1,242,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,549.70 : 1,481,324.55 = 828,117.40 : x
  2. Step 2: Convert to fraction form
    987,549.70/1,481,324.55 = 828,117.40/x
  3. Step 3: Cross multiply
    987,549.70x = 1,481,324.55 × 828,117.40
  4. Step 4: Simplify right side
    987,549.70x = 1,226,710,634,902.17
  5. Step 5: Solve for x
    x = 1,226,710,634,902.17/987,549.70
  6. Step 6: Final answer
    x = 1,242,176.10

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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.