Home / 2,930,534.57-4,395,402.80-771,378.86

Finding the Fourth Proportional to 2,930,534.57, 4,395,402.80 and 771,378.86

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Solution

The fourth proportional to 2,930,534.57, 4,395,402.80 and 771,378.86 is: 1,156,963.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930,534.57 : 4,395,402.80 = 771,378.86 : x
  2. Step 2: Convert to fraction form
    2,930,534.57/4,395,402.80 = 771,378.86/x
  3. Step 3: Cross multiply
    2,930,534.57x = 4,395,402.80 × 771,378.86
  4. Step 4: Simplify right side
    2,930,534.57x = 3,390,520,808,236.42
  5. Step 5: Solve for x
    x = 3,390,520,808,236.42/2,930,534.57
  6. Step 6: Final answer
    x = 1,156,963.25

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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.