Home / 987,394.02-1,481,017.15-356,307.81

Finding the Fourth Proportional to 987,394.02, 1,481,017.15 and 356,307.81

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Solution

The fourth proportional to 987,394.02, 1,481,017.15 and 356,307.81 is: 534,435.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,394.02 : 1,481,017.15 = 356,307.81 : x
  2. Step 2: Convert to fraction form
    987,394.02/1,481,017.15 = 356,307.81/x
  3. Step 3: Cross multiply
    987,394.02x = 1,481,017.15 × 356,307.81
  4. Step 4: Simplify right side
    987,394.02x = 527,697,977,288.94
  5. Step 5: Solve for x
    x = 527,697,977,288.94/987,394.02
  6. Step 6: Final answer
    x = 534,435.05

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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.