Home / 987,014.79-1,362,031.65-551,345.72

Finding the Fourth Proportional to 987,014.79, 1,362,031.65 and 551,345.72

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Solution

The fourth proportional to 987,014.79, 1,362,031.65 and 551,345.72 is: 760,829.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,014.79 : 1,362,031.65 = 551,345.72 : x
  2. Step 2: Convert to fraction form
    987,014.79/1,362,031.65 = 551,345.72/x
  3. Step 3: Cross multiply
    987,014.79x = 1,362,031.65 × 551,345.72
  4. Step 4: Simplify right side
    987,014.79x = 750,950,313,921.88
  5. Step 5: Solve for x
    x = 750,950,313,921.88/987,014.79
  6. Step 6: Final answer
    x = 760,829.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.