Home / 921,750.03-1,271,950.09-513,833.83

Finding the Fourth Proportional to 921,750.03, 1,271,950.09 and 513,833.83

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Solution

The fourth proportional to 921,750.03, 1,271,950.09 and 513,833.83 is: 709,054.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,750.03 : 1,271,950.09 = 513,833.83 : x
  2. Step 2: Convert to fraction form
    921,750.03/1,271,950.09 = 513,833.83/x
  3. Step 3: Cross multiply
    921,750.03x = 1,271,950.09 × 513,833.83
  4. Step 4: Simplify right side
    921,750.03x = 653,570,981,849.09
  5. Step 5: Solve for x
    x = 653,570,981,849.09/921,750.03
  6. Step 6: Final answer
    x = 709,054.47

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1.5x scale

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.