Home / 874,776.78-1,207,417.14-569,614.86

Finding the Fourth Proportional to 874,776.78, 1,207,417.14 and 569,614.86

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Solution

The fourth proportional to 874,776.78, 1,207,417.14 and 569,614.86 is: 786,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,776.78 : 1,207,417.14 = 569,614.86 : x
  2. Step 2: Convert to fraction form
    874,776.78/1,207,417.14 = 569,614.86/x
  3. Step 3: Cross multiply
    874,776.78x = 1,207,417.14 × 569,614.86
  4. Step 4: Simplify right side
    874,776.78x = 687,762,745,162.70
  5. Step 5: Solve for x
    x = 687,762,745,162.70/874,776.78
  6. Step 6: Final answer
    x = 786,215.14

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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.