Home / 1,980,902.40-2,971,353.60-1,954,330.35

Finding the Fourth Proportional to 1,980,902.40, 2,971,353.60 and 1,954,330.35

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Solution

The fourth proportional to 1,980,902.40, 2,971,353.60 and 1,954,330.35 is: 2,931,495.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,902.40 : 2,971,353.60 = 1,954,330.35 : x
  2. Step 2: Convert to fraction form
    1,980,902.40/2,971,353.60 = 1,954,330.35/x
  3. Step 3: Cross multiply
    1,980,902.40x = 2,971,353.60 × 1,954,330.35
  4. Step 4: Simplify right side
    1,980,902.40x = 5,807,006,521,061.76
  5. Step 5: Solve for x
    x = 5,807,006,521,061.76/1,980,902.40
  6. Step 6: Final answer
    x = 2,931,495.53

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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.