Home / 1,680,209.89-2,318,012.16-972,505.96

Finding the Fourth Proportional to 1,680,209.89, 2,318,012.16 and 972,505.96

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Solution

The fourth proportional to 1,680,209.89, 2,318,012.16 and 972,505.96 is: 1,341,666.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,209.89 : 2,318,012.16 = 972,505.96 : x
  2. Step 2: Convert to fraction form
    1,680,209.89/2,318,012.16 = 972,505.96/x
  3. Step 3: Cross multiply
    1,680,209.89x = 2,318,012.16 × 972,505.96
  4. Step 4: Simplify right side
    1,680,209.89x = 2,254,280,629,362.41
  5. Step 5: Solve for x
    x = 2,254,280,629,362.41/1,680,209.89
  6. Step 6: Final answer
    x = 1,341,666.09

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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.