Home / 829,931.80-1,244,897.70-780,068.20

Finding the Fourth Proportional to 829,931.80, 1,244,897.70 and 780,068.20

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Solution

The fourth proportional to 829,931.80, 1,244,897.70 and 780,068.20 is: 1,170,102.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,931.80 : 1,244,897.70 = 780,068.20 : x
  2. Step 2: Convert to fraction form
    829,931.80/1,244,897.70 = 780,068.20/x
  3. Step 3: Cross multiply
    829,931.80x = 1,244,897.70 × 780,068.20
  4. Step 4: Simplify right side
    829,931.80x = 971,105,108,023.14
  5. Step 5: Solve for x
    x = 971,105,108,023.14/829,931.80
  6. Step 6: Final answer
    x = 1,170,102.30

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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.