Home / 890,669.85-1,229,094.56-527,878.38

Finding the Fourth Proportional to 890,669.85, 1,229,094.56 and 527,878.38

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Solution

The fourth proportional to 890,669.85, 1,229,094.56 and 527,878.38 is: 728,454.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,669.85 : 1,229,094.56 = 527,878.38 : x
  2. Step 2: Convert to fraction form
    890,669.85/1,229,094.56 = 527,878.38/x
  3. Step 3: Cross multiply
    890,669.85x = 1,229,094.56 × 527,878.38
  4. Step 4: Simplify right side
    890,669.85x = 648,812,442,560.22
  5. Step 5: Solve for x
    x = 648,812,442,560.22/890,669.85
  6. Step 6: Final answer
    x = 728,454.48

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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.