Home / 918,420.03-1,376,321.70-676,632.45

Finding the Fourth Proportional to 918,420.03, 1,376,321.70 and 676,632.45

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Solution

The fourth proportional to 918,420.03, 1,376,321.70 and 676,632.45 is: 1,013,984.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,420.03 : 1,376,321.70 = 676,632.45 : x
  2. Step 2: Convert to fraction form
    918,420.03/1,376,321.70 = 676,632.45/x
  3. Step 3: Cross multiply
    918,420.03x = 1,376,321.70 × 676,632.45
  4. Step 4: Simplify right side
    918,420.03x = 931,263,923,859.17
  5. Step 5: Solve for x
    x = 931,263,923,859.17/918,420.03
  6. Step 6: Final answer
    x = 1,013,984.77

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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.