Home / 911,031.48-1,257,223.45-529,082.86

Finding the Fourth Proportional to 911,031.48, 1,257,223.45 and 529,082.86

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Solution

The fourth proportional to 911,031.48, 1,257,223.45 and 529,082.86 is: 730,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,031.48 : 1,257,223.45 = 529,082.86 : x
  2. Step 2: Convert to fraction form
    911,031.48/1,257,223.45 = 529,082.86/x
  3. Step 3: Cross multiply
    911,031.48x = 1,257,223.45 × 529,082.86
  4. Step 4: Simplify right side
    911,031.48x = 665,175,378,833.89
  5. Step 5: Solve for x
    x = 665,175,378,833.89/911,031.48
  6. Step 6: Final answer
    x = 730,134.35

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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.