Home / 1,618,666.65-2,427,999.98-778,858.65

Finding the Fourth Proportional to 1,618,666.65, 2,427,999.98 and 778,858.65

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Solution

The fourth proportional to 1,618,666.65, 2,427,999.98 and 778,858.65 is: 1,168,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,666.65 : 2,427,999.98 = 778,858.65 : x
  2. Step 2: Convert to fraction form
    1,618,666.65/2,427,999.98 = 778,858.65/x
  3. Step 3: Cross multiply
    1,618,666.65x = 2,427,999.98 × 778,858.65
  4. Step 4: Simplify right side
    1,618,666.65x = 1,891,068,782,728.53
  5. Step 5: Solve for x
    x = 1,891,068,782,728.53/1,618,666.65
  6. Step 6: Final answer
    x = 1,168,287.98

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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.