Home / 1,209,660.60-1,814,490.90-784,507.80

Finding the Fourth Proportional to 1,209,660.60, 1,814,490.90 and 784,507.80

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Solution

The fourth proportional to 1,209,660.60, 1,814,490.90 and 784,507.80 is: 1,176,761.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,660.60 : 1,814,490.90 = 784,507.80 : x
  2. Step 2: Convert to fraction form
    1,209,660.60/1,814,490.90 = 784,507.80/x
  3. Step 3: Cross multiply
    1,209,660.60x = 1,814,490.90 × 784,507.80
  4. Step 4: Simplify right side
    1,209,660.60x = 1,423,482,264,079.02
  5. Step 5: Solve for x
    x = 1,423,482,264,079.02/1,209,660.60
  6. Step 6: Final answer
    x = 1,176,761.70

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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.