Home / 929,741.76-1,282,937.76-521,788.32

Finding the Fourth Proportional to 929,741.76, 1,282,937.76 and 521,788.32

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Solution

The fourth proportional to 929,741.76, 1,282,937.76 and 521,788.32 is: 720,008.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,741.76 : 1,282,937.76 = 521,788.32 : x
  2. Step 2: Convert to fraction form
    929,741.76/1,282,937.76 = 521,788.32/x
  3. Step 3: Cross multiply
    929,741.76x = 1,282,937.76 × 521,788.32
  4. Step 4: Simplify right side
    929,741.76x = 669,421,938,454.96
  5. Step 5: Solve for x
    x = 669,421,938,454.96/929,741.76
  6. Step 6: Final answer
    x = 720,008.47

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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.