Home / 921,337.84-1,271,011.62-539,128

Finding the Fourth Proportional to 921,337.84, 1,271,011.62 and 539,128

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Solution

The fourth proportional to 921,337.84, 1,271,011.62 and 539,128 is: 743,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,337.84 : 1,271,011.62 = 539,128 : x
  2. Step 2: Convert to fraction form
    921,337.84/1,271,011.62 = 539,128/x
  3. Step 3: Cross multiply
    921,337.84x = 1,271,011.62 × 539,128
  4. Step 4: Simplify right side
    921,337.84x = 685,237,952,667.36
  5. Step 5: Solve for x
    x = 685,237,952,667.36/921,337.84
  6. Step 6: Final answer
    x = 743,742.33

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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.