Home / 1,218,510.83-1,681,607.03-674,706.60

Finding the Fourth Proportional to 1,218,510.83, 1,681,607.03 and 674,706.60

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Solution

The fourth proportional to 1,218,510.83, 1,681,607.03 and 674,706.60 is: 931,129.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,510.83 : 1,681,607.03 = 674,706.60 : x
  2. Step 2: Convert to fraction form
    1,218,510.83/1,681,607.03 = 674,706.60/x
  3. Step 3: Cross multiply
    1,218,510.83x = 1,681,607.03 × 674,706.60
  4. Step 4: Simplify right side
    1,218,510.83x = 1,134,591,358,373.87
  5. Step 5: Solve for x
    x = 1,134,591,358,373.87/1,218,510.83
  6. Step 6: Final answer
    x = 931,129.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.