Home / 652,215.11-977,864.31-287,303.54

Finding the Fourth Proportional to 652,215.11, 977,864.31 and 287,303.54

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Solution

The fourth proportional to 652,215.11, 977,864.31 and 287,303.54 is: 430,753.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,215.11 : 977,864.31 = 287,303.54 : x
  2. Step 2: Convert to fraction form
    652,215.11/977,864.31 = 287,303.54/x
  3. Step 3: Cross multiply
    652,215.11x = 977,864.31 × 287,303.54
  4. Step 4: Simplify right side
    652,215.11x = 280,943,873,013.34
  5. Step 5: Solve for x
    x = 280,943,873,013.34/652,215.11
  6. Step 6: Final answer
    x = 430,753.40

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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.