Home / 917,054.46-1,375,139.43-384,432.66

Finding the Fourth Proportional to 917,054.46, 1,375,139.43 and 384,432.66

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Solution

The fourth proportional to 917,054.46, 1,375,139.43 and 384,432.66 is: 576,463.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,054.46 : 1,375,139.43 = 384,432.66 : x
  2. Step 2: Convert to fraction form
    917,054.46/1,375,139.43 = 384,432.66/x
  3. Step 3: Cross multiply
    917,054.46x = 1,375,139.43 × 384,432.66
  4. Step 4: Simplify right side
    917,054.46x = 528,648,508,945.78
  5. Step 5: Solve for x
    x = 528,648,508,945.78/917,054.46
  6. Step 6: Final answer
    x = 576,463.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.