Home / 818,902.80-1,229,666.40-619,448.40

Finding the Fourth Proportional to 818,902.80, 1,229,666.40 and 619,448.40

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Solution

The fourth proportional to 818,902.80, 1,229,666.40 and 619,448.40 is: 930,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,902.80 : 1,229,666.40 = 619,448.40 : x
  2. Step 2: Convert to fraction form
    818,902.80/1,229,666.40 = 619,448.40/x
  3. Step 3: Cross multiply
    818,902.80x = 1,229,666.40 × 619,448.40
  4. Step 4: Simplify right side
    818,902.80x = 761,714,884,013.76
  5. Step 5: Solve for x
    x = 761,714,884,013.76/818,902.80
  6. Step 6: Final answer
    x = 930,165.20

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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.