Home / 912,897.51-1,369,470.87-380,293.96

Finding the Fourth Proportional to 912,897.51, 1,369,470.87 and 380,293.96

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Solution

The fourth proportional to 912,897.51, 1,369,470.87 and 380,293.96 is: 570,492.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,897.51 : 1,369,470.87 = 380,293.96 : x
  2. Step 2: Convert to fraction form
    912,897.51/1,369,470.87 = 380,293.96/x
  3. Step 3: Cross multiply
    912,897.51x = 1,369,470.87 × 380,293.96
  4. Step 4: Simplify right side
    912,897.51x = 520,801,491,508.12
  5. Step 5: Solve for x
    x = 520,801,491,508.12/912,897.51
  6. Step 6: Final answer
    x = 570,492.84

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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.