Home / 687,632.64-1,031,595.84-214,307.52

Finding the Fourth Proportional to 687,632.64, 1,031,595.84 and 214,307.52

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Solution

The fourth proportional to 687,632.64, 1,031,595.84 and 214,307.52 is: 321,507.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,632.64 : 1,031,595.84 = 214,307.52 : x
  2. Step 2: Convert to fraction form
    687,632.64/1,031,595.84 = 214,307.52/x
  3. Step 3: Cross multiply
    687,632.64x = 1,031,595.84 × 214,307.52
  4. Step 4: Simplify right side
    687,632.64x = 221,078,746,112.72
  5. Step 5: Solve for x
    x = 221,078,746,112.72/687,632.64
  6. Step 6: Final answer
    x = 321,507.06

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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.