Home / 886,312.14-1,224,129.15-645,670.86

Finding the Fourth Proportional to 886,312.14, 1,224,129.15 and 645,670.86

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Solution

The fourth proportional to 886,312.14, 1,224,129.15 and 645,670.86 is: 891,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,312.14 : 1,224,129.15 = 645,670.86 : x
  2. Step 2: Convert to fraction form
    886,312.14/1,224,129.15 = 645,670.86/x
  3. Step 3: Cross multiply
    886,312.14x = 1,224,129.15 × 645,670.86
  4. Step 4: Simplify right side
    886,312.14x = 790,384,521,031.57
  5. Step 5: Solve for x
    x = 790,384,521,031.57/886,312.14
  6. Step 6: Final answer
    x = 891,767.68

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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.