Home / 1,931,612.20-2,897,288.70-511,637.80

Finding the Fourth Proportional to 1,931,612.20, 2,897,288.70 and 511,637.80

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Solution

The fourth proportional to 1,931,612.20, 2,897,288.70 and 511,637.80 is: 767,422.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,612.20 : 2,897,288.70 = 511,637.80 : x
  2. Step 2: Convert to fraction form
    1,931,612.20/2,897,288.70 = 511,637.80/x
  3. Step 3: Cross multiply
    1,931,612.20x = 2,897,288.70 × 511,637.80
  4. Step 4: Simplify right side
    1,931,612.20x = 1,482,362,416,432.86
  5. Step 5: Solve for x
    x = 1,482,362,416,432.86/1,931,612.20
  6. Step 6: Final answer
    x = 767,422.37

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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.