Home / 921,497.84-1,271,679.75-513,588.32

Finding the Fourth Proportional to 921,497.84, 1,271,679.75 and 513,588.32

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Solution

The fourth proportional to 921,497.84, 1,271,679.75 and 513,588.32 is: 708,758.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,497.84 : 1,271,679.75 = 513,588.32 : x
  2. Step 2: Convert to fraction form
    921,497.84/1,271,679.75 = 513,588.32/x
  3. Step 3: Cross multiply
    921,497.84x = 1,271,679.75 × 513,588.32
  4. Step 4: Simplify right side
    921,497.84x = 653,119,866,380.52
  5. Step 5: Solve for x
    x = 653,119,866,380.52/921,497.84
  6. Step 6: Final answer
    x = 708,758.98

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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.