Home / 1,778,476.80-2,665,900.80-878,534.40

Finding the Fourth Proportional to 1,778,476.80, 2,665,900.80 and 878,534.40

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Solution

The fourth proportional to 1,778,476.80, 2,665,900.80 and 878,534.40 is: 1,316,905.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,476.80 : 2,665,900.80 = 878,534.40 : x
  2. Step 2: Convert to fraction form
    1,778,476.80/2,665,900.80 = 878,534.40/x
  3. Step 3: Cross multiply
    1,778,476.80x = 2,665,900.80 × 878,534.40
  4. Step 4: Simplify right side
    1,778,476.80x = 2,342,085,559,787.52
  5. Step 5: Solve for x
    x = 2,342,085,559,787.52/1,778,476.80
  6. Step 6: Final answer
    x = 1,316,905.32

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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.