Home / 929,504.72-1,282,712.88-521,605.52

Finding the Fourth Proportional to 929,504.72, 1,282,712.88 and 521,605.52

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Solution

The fourth proportional to 929,504.72, 1,282,712.88 and 521,605.52 is: 719,813.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,504.72 : 1,282,712.88 = 521,605.52 : x
  2. Step 2: Convert to fraction form
    929,504.72/1,282,712.88 = 521,605.52/x
  3. Step 3: Cross multiply
    929,504.72x = 1,282,712.88 × 521,605.52
  4. Step 4: Simplify right side
    929,504.72x = 669,070,118,783.10
  5. Step 5: Solve for x
    x = 669,070,118,783.10/929,504.72
  6. Step 6: Final answer
    x = 719,813.58

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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.