Home / 1,780,799.04-2,671,219.08-643,647.60

Finding the Fourth Proportional to 1,780,799.04, 2,671,219.08 and 643,647.60

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Solution

The fourth proportional to 1,780,799.04, 2,671,219.08 and 643,647.60 is: 965,478.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,799.04 : 2,671,219.08 = 643,647.60 : x
  2. Step 2: Convert to fraction form
    1,780,799.04/2,671,219.08 = 643,647.60/x
  3. Step 3: Cross multiply
    1,780,799.04x = 2,671,219.08 × 643,647.60
  4. Step 4: Simplify right side
    1,780,799.04x = 1,719,323,749,916.21
  5. Step 5: Solve for x
    x = 1,719,323,749,916.21/1,780,799.04
  6. Step 6: Final answer
    x = 965,478.82

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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.