Home / 1,011,916.80-1,517,875.20-380,972.16

Finding the Fourth Proportional to 1,011,916.80, 1,517,875.20 and 380,972.16

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Solution

The fourth proportional to 1,011,916.80, 1,517,875.20 and 380,972.16 is: 571,458.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,916.80 : 1,517,875.20 = 380,972.16 : x
  2. Step 2: Convert to fraction form
    1,011,916.80/1,517,875.20 = 380,972.16/x
  3. Step 3: Cross multiply
    1,011,916.80x = 1,517,875.20 × 380,972.16
  4. Step 4: Simplify right side
    1,011,916.80x = 578,268,193,554.43
  5. Step 5: Solve for x
    x = 578,268,193,554.43/1,011,916.80
  6. Step 6: Final answer
    x = 571,458.24

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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.