Home / 1,931,429.10-2,897,143.65-1,917,432.30

Finding the Fourth Proportional to 1,931,429.10, 2,897,143.65 and 1,917,432.30

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Solution

The fourth proportional to 1,931,429.10, 2,897,143.65 and 1,917,432.30 is: 2,876,148.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,429.10 : 2,897,143.65 = 1,917,432.30 : x
  2. Step 2: Convert to fraction form
    1,931,429.10/2,897,143.65 = 1,917,432.30/x
  3. Step 3: Cross multiply
    1,931,429.10x = 2,897,143.65 × 1,917,432.30
  4. Step 4: Simplify right side
    1,931,429.10x = 5,555,076,812,249.89
  5. Step 5: Solve for x
    x = 5,555,076,812,249.89/1,931,429.10
  6. Step 6: Final answer
    x = 2,876,148.45

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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.